Home / 972,000.20-1,341,361.12-542,280.42

Finding the Fourth Proportional to 972,000.20, 1,341,361.12 and 542,280.42

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Solution

The fourth proportional to 972,000.20, 1,341,361.12 and 542,280.42 is: 748,347.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,000.20 : 1,341,361.12 = 542,280.42 : x
  2. Step 2: Convert to fraction form
    972,000.20/1,341,361.12 = 542,280.42/x
  3. Step 3: Cross multiply
    972,000.20x = 1,341,361.12 × 542,280.42
  4. Step 4: Simplify right side
    972,000.20x = 727,393,871,525.27
  5. Step 5: Solve for x
    x = 727,393,871,525.27/972,000.20
  6. Step 6: Final answer
    x = 748,347.45

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Double scale
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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.