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Finding the Fourth Proportional to 626,513.40, 940,061.70 and 327,331.80

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Solution

The fourth proportional to 626,513.40, 940,061.70 and 327,331.80 is: 491,150.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,513.40 : 940,061.70 = 327,331.80 : x
  2. Step 2: Convert to fraction form
    626,513.40/940,061.70 = 327,331.80/x
  3. Step 3: Cross multiply
    626,513.40x = 940,061.70 × 327,331.80
  4. Step 4: Simplify right side
    626,513.40x = 307,712,088,372.06
  5. Step 5: Solve for x
    x = 307,712,088,372.06/626,513.40
  6. Step 6: Final answer
    x = 491,150.05

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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.