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Finding the Fourth Proportional to 972,017, 1,341,422.34 and 542,334.68

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Solution

The fourth proportional to 972,017, 1,341,422.34 and 542,334.68 is: 748,443.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,017 : 1,341,422.34 = 542,334.68 : x
  2. Step 2: Convert to fraction form
    972,017/1,341,422.34 = 542,334.68/x
  3. Step 3: Cross multiply
    972,017x = 1,341,422.34 × 542,334.68
  4. Step 4: Simplify right side
    972,017x = 727,499,855,508.75
  5. Step 5: Solve for x
    x = 727,499,855,508.75/972,017
  6. Step 6: Final answer
    x = 748,443.55

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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.