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Finding the Fourth Proportional to 662,527.28, 992,507.88 and 396,497.36

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Solution

The fourth proportional to 662,527.28, 992,507.88 and 396,497.36 is: 593,978.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,527.28 : 992,507.88 = 396,497.36 : x
  2. Step 2: Convert to fraction form
    662,527.28/992,507.88 = 396,497.36/x
  3. Step 3: Cross multiply
    662,527.28x = 992,507.88 × 396,497.36
  4. Step 4: Simplify right side
    662,527.28x = 393,526,754,199.20
  5. Step 5: Solve for x
    x = 393,526,754,199.20/662,527.28
  6. Step 6: Final answer
    x = 593,978.19

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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.