Home / 781,445.64-1,172,192.36-269,105.28

Finding the Fourth Proportional to 781,445.64, 1,172,192.36 and 269,105.28

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Solution

The fourth proportional to 781,445.64, 1,172,192.36 and 269,105.28 is: 403,666.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,445.64 : 1,172,192.36 = 269,105.28 : x
  2. Step 2: Convert to fraction form
    781,445.64/1,172,192.36 = 269,105.28/x
  3. Step 3: Cross multiply
    781,445.64x = 1,172,192.36 × 269,105.28
  4. Step 4: Simplify right side
    781,445.64x = 315,443,153,251.66
  5. Step 5: Solve for x
    x = 315,443,153,251.66/781,445.64
  6. Step 6: Final answer
    x = 403,666.15

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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.