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Finding the Fourth Proportional to 615,119.40, 922,679.10 and 548,634.60

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Solution

The fourth proportional to 615,119.40, 922,679.10 and 548,634.60 is: 822,951.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,119.40 : 922,679.10 = 548,634.60 : x
  2. Step 2: Convert to fraction form
    615,119.40/922,679.10 = 548,634.60/x
  3. Step 3: Cross multiply
    615,119.40x = 922,679.10 × 548,634.60
  4. Step 4: Simplify right side
    615,119.40x = 506,213,678,956.86
  5. Step 5: Solve for x
    x = 506,213,678,956.86/615,119.40
  6. Step 6: Final answer
    x = 822,951.90

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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.