Home / 729,108.90-1,092,679.20-488,538.90

Finding the Fourth Proportional to 729,108.90, 1,092,679.20 and 488,538.90

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Solution

The fourth proportional to 729,108.90, 1,092,679.20 and 488,538.90 is: 732,148.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,108.90 : 1,092,679.20 = 488,538.90 : x
  2. Step 2: Convert to fraction form
    729,108.90/1,092,679.20 = 488,538.90/x
  3. Step 3: Cross multiply
    729,108.90x = 1,092,679.20 × 488,538.90
  4. Step 4: Simplify right side
    729,108.90x = 533,816,294,420.88
  5. Step 5: Solve for x
    x = 533,816,294,420.88/729,108.90
  6. Step 6: Final answer
    x = 732,148.92

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1.5x scale

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.