Home / 972,131.64-1,341,542.70-542,439.60

Finding the Fourth Proportional to 972,131.64, 1,341,542.70 and 542,439.60

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Solution

The fourth proportional to 972,131.64, 1,341,542.70 and 542,439.60 is: 748,567.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,131.64 : 1,341,542.70 = 542,439.60 : x
  2. Step 2: Convert to fraction form
    972,131.64/1,341,542.70 = 542,439.60/x
  3. Step 3: Cross multiply
    972,131.64x = 1,341,542.70 × 542,439.60
  4. Step 4: Simplify right side
    972,131.64x = 727,705,885,570.92
  5. Step 5: Solve for x
    x = 727,705,885,570.92/972,131.64
  6. Step 6: Final answer
    x = 748,567.23

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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.