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Finding the Fourth Proportional to 565,385.32, 780,258.18 and 323,694.28

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Solution

The fourth proportional to 565,385.32, 780,258.18 and 323,694.28 is: 446,713.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,385.32 : 780,258.18 = 323,694.28 : x
  2. Step 2: Convert to fraction form
    565,385.32/780,258.18 = 323,694.28/x
  3. Step 3: Cross multiply
    565,385.32x = 780,258.18 × 323,694.28
  4. Step 4: Simplify right side
    565,385.32x = 252,565,109,789.21
  5. Step 5: Solve for x
    x = 252,565,109,789.21/565,385.32
  6. Step 6: Final answer
    x = 446,713.24

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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.