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Finding the Fourth Proportional to 613,115.31, 918,343.74 and 296,909.13

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Solution

The fourth proportional to 613,115.31, 918,343.74 and 296,909.13 is: 444,720.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,115.31 : 918,343.74 = 296,909.13 : x
  2. Step 2: Convert to fraction form
    613,115.31/918,343.74 = 296,909.13/x
  3. Step 3: Cross multiply
    613,115.31x = 918,343.74 × 296,909.13
  4. Step 4: Simplify right side
    613,115.31x = 272,664,640,884.35
  5. Step 5: Solve for x
    x = 272,664,640,884.35/613,115.31
  6. Step 6: Final answer
    x = 444,720.00

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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.