Home / 976,951.92-1,347,520.32-687,178.08

Finding the Fourth Proportional to 976,951.92, 1,347,520.32 and 687,178.08

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Solution

The fourth proportional to 976,951.92, 1,347,520.32 and 687,178.08 is: 947,832.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,951.92 : 1,347,520.32 = 687,178.08 : x
  2. Step 2: Convert to fraction form
    976,951.92/1,347,520.32 = 687,178.08/x
  3. Step 3: Cross multiply
    976,951.92x = 1,347,520.32 × 687,178.08
  4. Step 4: Simplify right side
    976,951.92x = 925,986,426,258.59
  5. Step 5: Solve for x
    x = 925,986,426,258.59/976,951.92
  6. Step 6: Final answer
    x = 947,832.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.