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Finding the Fourth Proportional to 972,018, 1,341,423.72 and 542,335.68

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Solution

The fourth proportional to 972,018, 1,341,423.72 and 542,335.68 is: 748,444.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,018 : 1,341,423.72 = 542,335.68 : x
  2. Step 2: Convert to fraction form
    972,018/1,341,423.72 = 542,335.68/x
  3. Step 3: Cross multiply
    972,018x = 1,341,423.72 × 542,335.68
  4. Step 4: Simplify right side
    972,018x = 727,501,945,354.33
  5. Step 5: Solve for x
    x = 727,501,945,354.33/972,018
  6. Step 6: Final answer
    x = 748,444.93

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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.