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Finding the Fourth Proportional to 615,221.60, 922,832.40 and 560,109.20

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Solution

The fourth proportional to 615,221.60, 922,832.40 and 560,109.20 is: 840,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,221.60 : 922,832.40 = 560,109.20 : x
  2. Step 2: Convert to fraction form
    615,221.60/922,832.40 = 560,109.20/x
  3. Step 3: Cross multiply
    615,221.60x = 922,832.40 × 560,109.20
  4. Step 4: Simplify right side
    615,221.60x = 516,886,917,298.08
  5. Step 5: Solve for x
    x = 516,886,917,298.08/615,221.60
  6. Step 6: Final answer
    x = 840,163.80

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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.