Home / 811,512.52-1,217,791.02-437,793.48

Finding the Fourth Proportional to 811,512.52, 1,217,791.02 and 437,793.48

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Solution

The fourth proportional to 811,512.52, 1,217,791.02 and 437,793.48 is: 656,971.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,512.52 : 1,217,791.02 = 437,793.48 : x
  2. Step 2: Convert to fraction form
    811,512.52/1,217,791.02 = 437,793.48/x
  3. Step 3: Cross multiply
    811,512.52x = 1,217,791.02 × 437,793.48
  4. Step 4: Simplify right side
    811,512.52x = 533,140,968,558.55
  5. Step 5: Solve for x
    x = 533,140,968,558.55/811,512.52
  6. Step 6: Final answer
    x = 656,971.96

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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.