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Finding the Fourth Proportional to 615,079.80, 922,619.70 and 377,652.60

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Solution

The fourth proportional to 615,079.80, 922,619.70 and 377,652.60 is: 566,478.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,079.80 : 922,619.70 = 377,652.60 : x
  2. Step 2: Convert to fraction form
    615,079.80/922,619.70 = 377,652.60/x
  3. Step 3: Cross multiply
    615,079.80x = 922,619.70 × 377,652.60
  4. Step 4: Simplify right side
    615,079.80x = 348,429,728,516.22
  5. Step 5: Solve for x
    x = 348,429,728,516.22/615,079.80
  6. Step 6: Final answer
    x = 566,478.90

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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.