Home / 890,072.86-1,335,191.38-291,037.10

Finding the Fourth Proportional to 890,072.86, 1,335,191.38 and 291,037.10

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Solution

The fourth proportional to 890,072.86, 1,335,191.38 and 291,037.10 is: 436,582.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,072.86 : 1,335,191.38 = 291,037.10 : x
  2. Step 2: Convert to fraction form
    890,072.86/1,335,191.38 = 291,037.10/x
  3. Step 3: Cross multiply
    890,072.86x = 1,335,191.38 × 291,037.10
  4. Step 4: Simplify right side
    890,072.86x = 388,590,227,180.20
  5. Step 5: Solve for x
    x = 388,590,227,180.20/890,072.86
  6. Step 6: Final answer
    x = 436,582.49

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Half scale
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Double scale
Find fourth proportional to 890,073.86, 1,335,192.88 and 291,038.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.