Home / 765,438.94-1,056,169.56-443,133.46

Finding the Fourth Proportional to 765,438.94, 1,056,169.56 and 443,133.46

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Solution

The fourth proportional to 765,438.94, 1,056,169.56 and 443,133.46 is: 611,445.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,438.94 : 1,056,169.56 = 443,133.46 : x
  2. Step 2: Convert to fraction form
    765,438.94/1,056,169.56 = 443,133.46/x
  3. Step 3: Cross multiply
    765,438.94x = 1,056,169.56 × 443,133.46
  4. Step 4: Simplify right side
    765,438.94x = 468,024,071,469.48
  5. Step 5: Solve for x
    x = 468,024,071,469.48/765,438.94
  6. Step 6: Final answer
    x = 611,445.34

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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.