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Finding the Fourth Proportional to 418,775.50, 578,012.88 and 237,593.50

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Solution

The fourth proportional to 418,775.50, 578,012.88 and 237,593.50 is: 327,937.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,775.50 : 578,012.88 = 237,593.50 : x
  2. Step 2: Convert to fraction form
    418,775.50/578,012.88 = 237,593.50/x
  3. Step 3: Cross multiply
    418,775.50x = 578,012.88 × 237,593.50
  4. Step 4: Simplify right side
    418,775.50x = 137,332,103,204.28
  5. Step 5: Solve for x
    x = 137,332,103,204.28/418,775.50
  6. Step 6: Final answer
    x = 327,937.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.