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Finding the Fourth Proportional to 880,385.64, 1,215,221.58 and 517,794

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Solution

The fourth proportional to 880,385.64, 1,215,221.58 and 517,794 is: 714,725.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,385.64 : 1,215,221.58 = 517,794 : x
  2. Step 2: Convert to fraction form
    880,385.64/1,215,221.58 = 517,794/x
  3. Step 3: Cross multiply
    880,385.64x = 1,215,221.58 × 517,794
  4. Step 4: Simplify right side
    880,385.64x = 629,234,442,794.52
  5. Step 5: Solve for x
    x = 629,234,442,794.52/880,385.64
  6. Step 6: Final answer
    x = 714,725.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.