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Finding the Fourth Proportional to 503,645.59, 755,497.99 and 143,788.78

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Solution

The fourth proportional to 503,645.59, 755,497.99 and 143,788.78 is: 215,691.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,645.59 : 755,497.99 = 143,788.78 : x
  2. Step 2: Convert to fraction form
    503,645.59/755,497.99 = 143,788.78/x
  3. Step 3: Cross multiply
    503,645.59x = 755,497.99 × 143,788.78
  4. Step 4: Simplify right side
    503,645.59x = 108,632,130,497.06
  5. Step 5: Solve for x
    x = 108,632,130,497.06/503,645.59
  6. Step 6: Final answer
    x = 215,691.62

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1.5x scale

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.