Home / 811,500.52-1,217,773.02-437,781.48

Finding the Fourth Proportional to 811,500.52, 1,217,773.02 and 437,781.48

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Solution

The fourth proportional to 811,500.52, 1,217,773.02 and 437,781.48 is: 656,953.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,500.52 : 1,217,773.02 = 437,781.48 : x
  2. Step 2: Convert to fraction form
    811,500.52/1,217,773.02 = 437,781.48/x
  3. Step 3: Cross multiply
    811,500.52x = 1,217,773.02 × 437,781.48
  4. Step 4: Simplify right side
    811,500.52x = 533,118,474,999.67
  5. Step 5: Solve for x
    x = 533,118,474,999.67/811,500.52
  6. Step 6: Final answer
    x = 656,953.95

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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.