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Finding the Fourth Proportional to 503,756.66, 755,687.97 and 290,519.72

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Solution

The fourth proportional to 503,756.66, 755,687.97 and 290,519.72 is: 435,810.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,756.66 : 755,687.97 = 290,519.72 : x
  2. Step 2: Convert to fraction form
    503,756.66/755,687.97 = 290,519.72/x
  3. Step 3: Cross multiply
    503,756.66x = 755,687.97 × 290,519.72
  4. Step 4: Simplify right side
    503,756.66x = 219,542,257,451.77
  5. Step 5: Solve for x
    x = 219,542,257,451.77/503,756.66
  6. Step 6: Final answer
    x = 435,810.13

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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.