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Finding the Fourth Proportional to 615,188.30, 923,632.14 and 425,180.12

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Solution

The fourth proportional to 615,188.30, 923,632.14 and 425,180.12 is: 638,357.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,188.30 : 923,632.14 = 425,180.12 : x
  2. Step 2: Convert to fraction form
    615,188.30/923,632.14 = 425,180.12/x
  3. Step 3: Cross multiply
    615,188.30x = 923,632.14 × 425,180.12
  4. Step 4: Simplify right side
    615,188.30x = 392,710,024,121.06
  5. Step 5: Solve for x
    x = 392,710,024,121.06/615,188.30
  6. Step 6: Final answer
    x = 638,357.43

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1.5x scale

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.