Home / 890,064.36-1,335,178.62-291,028.59

Finding the Fourth Proportional to 890,064.36, 1,335,178.62 and 291,028.59

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Solution

The fourth proportional to 890,064.36, 1,335,178.62 and 291,028.59 is: 436,569.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,064.36 : 1,335,178.62 = 291,028.59 : x
  2. Step 2: Convert to fraction form
    890,064.36/1,335,178.62 = 291,028.59/x
  3. Step 3: Cross multiply
    890,064.36x = 1,335,178.62 × 291,028.59
  4. Step 4: Simplify right side
    890,064.36x = 388,575,151,176.75
  5. Step 5: Solve for x
    x = 388,575,151,176.75/890,064.36
  6. Step 6: Final answer
    x = 436,569.72

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Double scale
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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.