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Finding the Fourth Proportional to 680,065.23, 938,490.01 and 374,135.04

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Solution

The fourth proportional to 680,065.23, 938,490.01 and 374,135.04 is: 516,306.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,065.23 : 938,490.01 = 374,135.04 : x
  2. Step 2: Convert to fraction form
    680,065.23/938,490.01 = 374,135.04/x
  3. Step 3: Cross multiply
    680,065.23x = 938,490.01 × 374,135.04
  4. Step 4: Simplify right side
    680,065.23x = 351,121,997,430.95
  5. Step 5: Solve for x
    x = 351,121,997,430.95/680,065.23
  6. Step 6: Final answer
    x = 516,306.35

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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.