Home / 972,000.79-1,341,359.11-542,255.29

Finding the Fourth Proportional to 972,000.79, 1,341,359.11 and 542,255.29

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Solution

The fourth proportional to 972,000.79, 1,341,359.11 and 542,255.29 is: 748,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,000.79 : 1,341,359.11 = 542,255.29 : x
  2. Step 2: Convert to fraction form
    972,000.79/1,341,359.11 = 542,255.29/x
  3. Step 3: Cross multiply
    972,000.79x = 1,341,359.11 × 542,255.29
  4. Step 4: Simplify right side
    972,000.79x = 727,359,073,187.19
  5. Step 5: Solve for x
    x = 727,359,073,187.19/972,000.79
  6. Step 6: Final answer
    x = 748,311.20

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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.