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Finding the Fourth Proportional to 680,370.51, 938,876.27 and 374,475.93

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Solution

The fourth proportional to 680,370.51, 938,876.27 and 374,475.93 is: 516,757.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,370.51 : 938,876.27 = 374,475.93 : x
  2. Step 2: Convert to fraction form
    680,370.51/938,876.27 = 374,475.93/x
  3. Step 3: Cross multiply
    680,370.51x = 938,876.27 × 374,475.93
  4. Step 4: Simplify right side
    680,370.51x = 351,586,557,796.42
  5. Step 5: Solve for x
    x = 351,586,557,796.42/680,370.51
  6. Step 6: Final answer
    x = 516,757.49

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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.