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Finding the Fourth Proportional to 680,010.31, 938,384.58 and 374,067.29

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Solution

The fourth proportional to 680,010.31, 938,384.58 and 374,067.29 is: 516,196.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,010.31 : 938,384.58 = 374,067.29 : x
  2. Step 2: Convert to fraction form
    680,010.31/938,384.58 = 374,067.29/x
  3. Step 3: Cross multiply
    680,010.31x = 938,384.58 × 374,067.29
  4. Step 4: Simplify right side
    680,010.31x = 351,018,976,818.39
  5. Step 5: Solve for x
    x = 351,018,976,818.39/680,010.31
  6. Step 6: Final answer
    x = 516,196.55

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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.