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Finding the Fourth Proportional to 615,234.20, 922,851.30 and 606,939.80

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Solution

The fourth proportional to 615,234.20, 922,851.30 and 606,939.80 is: 910,409.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,234.20 : 922,851.30 = 606,939.80 : x
  2. Step 2: Convert to fraction form
    615,234.20/922,851.30 = 606,939.80/x
  3. Step 3: Cross multiply
    615,234.20x = 922,851.30 × 606,939.80
  4. Step 4: Simplify right side
    615,234.20x = 560,115,183,451.74
  5. Step 5: Solve for x
    x = 560,115,183,451.74/615,234.20
  6. Step 6: Final answer
    x = 910,409.70

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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.