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Finding the Fourth Proportional to 978,484.23, 1,350,177.75 and 542,894.58

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Solution

The fourth proportional to 978,484.23, 1,350,177.75 and 542,894.58 is: 749,122.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,484.23 : 1,350,177.75 = 542,894.58 : x
  2. Step 2: Convert to fraction form
    978,484.23/1,350,177.75 = 542,894.58/x
  3. Step 3: Cross multiply
    978,484.23x = 1,350,177.75 × 542,894.58
  4. Step 4: Simplify right side
    978,484.23x = 733,004,182,511.60
  5. Step 5: Solve for x
    x = 733,004,182,511.60/978,484.23
  6. Step 6: Final answer
    x = 749,122.12

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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.