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Finding the Fourth Proportional to 517,272.24, 775,908.80 and 247,336.87

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Solution

The fourth proportional to 517,272.24, 775,908.80 and 247,336.87 is: 371,005.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,272.24 : 775,908.80 = 247,336.87 : x
  2. Step 2: Convert to fraction form
    517,272.24/775,908.80 = 247,336.87/x
  3. Step 3: Cross multiply
    517,272.24x = 775,908.80 × 247,336.87
  4. Step 4: Simplify right side
    517,272.24x = 191,910,850,821.00
  5. Step 5: Solve for x
    x = 191,910,850,821.00/517,272.24
  6. Step 6: Final answer
    x = 371,005.51

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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.