Home / 681,787.28-940,860.06-371,689.81

Finding the Fourth Proportional to 681,787.28, 940,860.06 and 371,689.81

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Solution

The fourth proportional to 681,787.28, 940,860.06 and 371,689.81 is: 512,928.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,787.28 : 940,860.06 = 371,689.81 : x
  2. Step 2: Convert to fraction form
    681,787.28/940,860.06 = 371,689.81/x
  3. Step 3: Cross multiply
    681,787.28x = 940,860.06 × 371,689.81
  4. Step 4: Simplify right side
    681,787.28x = 349,708,098,484.34
  5. Step 5: Solve for x
    x = 349,708,098,484.34/681,787.28
  6. Step 6: Final answer
    x = 512,928.46

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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.