Home / 765,924.26-1,056,966.56-421,753.02

Finding the Fourth Proportional to 765,924.26, 1,056,966.56 and 421,753.02

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Solution

The fourth proportional to 765,924.26, 1,056,966.56 and 421,753.02 is: 582,014.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,924.26 : 1,056,966.56 = 421,753.02 : x
  2. Step 2: Convert to fraction form
    765,924.26/1,056,966.56 = 421,753.02/x
  3. Step 3: Cross multiply
    765,924.26x = 1,056,966.56 × 421,753.02
  4. Step 4: Simplify right side
    765,924.26x = 445,778,838,719.01
  5. Step 5: Solve for x
    x = 445,778,838,719.01/765,924.26
  6. Step 6: Final answer
    x = 582,014.26

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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.