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Finding the Fourth Proportional to 648,002.90, 971,543.55 and 248,489.30

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Solution

The fourth proportional to 648,002.90, 971,543.55 and 248,489.30 is: 372,557.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,002.90 : 971,543.55 = 248,489.30 : x
  2. Step 2: Convert to fraction form
    648,002.90/971,543.55 = 248,489.30/x
  3. Step 3: Cross multiply
    648,002.90x = 971,543.55 × 248,489.30
  4. Step 4: Simplify right side
    648,002.90x = 241,418,176,659.02
  5. Step 5: Solve for x
    x = 241,418,176,659.02/648,002.90
  6. Step 6: Final answer
    x = 372,557.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.