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Finding the Fourth Proportional to 503,757.66, 755,689.47 and 290,520.72

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Solution

The fourth proportional to 503,757.66, 755,689.47 and 290,520.72 is: 435,811.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,757.66 : 755,689.47 = 290,520.72 : x
  2. Step 2: Convert to fraction form
    503,757.66/755,689.47 = 290,520.72/x
  3. Step 3: Cross multiply
    503,757.66x = 755,689.47 × 290,520.72
  4. Step 4: Simplify right side
    503,757.66x = 219,543,448,920.82
  5. Step 5: Solve for x
    x = 219,543,448,920.82/503,757.66
  6. Step 6: Final answer
    x = 435,811.63

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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.