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Finding the Fourth Proportional to 832,738.80, 1,248,978.60 and 233,641.20

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Solution

The fourth proportional to 832,738.80, 1,248,978.60 and 233,641.20 is: 350,425.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,738.80 : 1,248,978.60 = 233,641.20 : x
  2. Step 2: Convert to fraction form
    832,738.80/1,248,978.60 = 233,641.20/x
  3. Step 3: Cross multiply
    832,738.80x = 1,248,978.60 × 233,641.20
  4. Step 4: Simplify right side
    832,738.80x = 291,812,858,878.32
  5. Step 5: Solve for x
    x = 291,812,858,878.32/832,738.80
  6. Step 6: Final answer
    x = 350,425.44

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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.