Home / 662,517.28-992,492.88-396,487.36

Finding the Fourth Proportional to 662,517.28, 992,492.88 and 396,487.36

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Solution

The fourth proportional to 662,517.28, 992,492.88 and 396,487.36 is: 593,963.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,517.28 : 992,492.88 = 396,487.36 : x
  2. Step 2: Convert to fraction form
    662,517.28/992,492.88 = 396,487.36/x
  3. Step 3: Cross multiply
    662,517.28x = 992,492.88 × 396,487.36
  4. Step 4: Simplify right side
    662,517.28x = 393,510,881,810.00
  5. Step 5: Solve for x
    x = 393,510,881,810.00/662,517.28
  6. Step 6: Final answer
    x = 593,963.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.