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Finding the Fourth Proportional to 680,287.07, 938,772.60 and 374,334.84

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Solution

The fourth proportional to 680,287.07, 938,772.60 and 374,334.84 is: 516,569.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,287.07 : 938,772.60 = 374,334.84 : x
  2. Step 2: Convert to fraction form
    680,287.07/938,772.60 = 374,334.84/x
  3. Step 3: Cross multiply
    680,287.07x = 938,772.60 × 374,334.84
  4. Step 4: Simplify right side
    680,287.07x = 351,415,291,017.38
  5. Step 5: Solve for x
    x = 351,415,291,017.38/680,287.07
  6. Step 6: Final answer
    x = 516,569.12

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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.