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Finding the Fourth Proportional to 972,557.52, 1,342,197 and 542,921.52

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Solution

The fourth proportional to 972,557.52, 1,342,197 and 542,921.52 is: 749,269.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,557.52 : 1,342,197 = 542,921.52 : x
  2. Step 2: Convert to fraction form
    972,557.52/1,342,197 = 542,921.52/x
  3. Step 3: Cross multiply
    972,557.52x = 1,342,197 × 542,921.52
  4. Step 4: Simplify right side
    972,557.52x = 728,707,635,379.44
  5. Step 5: Solve for x
    x = 728,707,635,379.44/972,557.52
  6. Step 6: Final answer
    x = 749,269.45

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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.