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Finding the Fourth Proportional to 503,756.73, 755,688.06 and 290,519.79

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Solution

The fourth proportional to 503,756.73, 755,688.06 and 290,519.79 is: 435,810.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,756.73 : 755,688.06 = 290,519.79 : x
  2. Step 2: Convert to fraction form
    503,756.73/755,688.06 = 290,519.79/x
  3. Step 3: Cross multiply
    503,756.73x = 755,688.06 × 290,519.79
  4. Step 4: Simplify right side
    503,756.73x = 219,542,336,496.71
  5. Step 5: Solve for x
    x = 219,542,336,496.71/503,756.73
  6. Step 6: Final answer
    x = 435,810.23

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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.