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Finding the Fourth Proportional to 613,116.06, 918,344.87 and 296,909.88

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Solution

The fourth proportional to 613,116.06, 918,344.87 and 296,909.88 is: 444,721.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,116.06 : 918,344.87 = 296,909.88 : x
  2. Step 2: Convert to fraction form
    613,116.06/918,344.87 = 296,909.88/x
  3. Step 3: Cross multiply
    613,116.06x = 918,344.87 × 296,909.88
  4. Step 4: Simplify right side
    613,116.06x = 272,665,665,150.32
  5. Step 5: Solve for x
    x = 272,665,665,150.32/613,116.06
  6. Step 6: Final answer
    x = 444,721.13

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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.