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Finding the Fourth Proportional to 503,575.80, 754,799.94 and 385,730.52

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Solution

The fourth proportional to 503,575.80, 754,799.94 and 385,730.52 is: 578,163.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,575.80 : 754,799.94 = 385,730.52 : x
  2. Step 2: Convert to fraction form
    503,575.80/754,799.94 = 385,730.52/x
  3. Step 3: Cross multiply
    503,575.80x = 754,799.94 × 385,730.52
  4. Step 4: Simplify right side
    503,575.80x = 291,149,373,352.17
  5. Step 5: Solve for x
    x = 291,149,373,352.17/503,575.80
  6. Step 6: Final answer
    x = 578,163.95

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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.