Home / 765,924.25-1,056,966.56-421,753.03

Finding the Fourth Proportional to 765,924.25, 1,056,966.56 and 421,753.03

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Solution

The fourth proportional to 765,924.25, 1,056,966.56 and 421,753.03 is: 582,014.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,924.25 : 1,056,966.56 = 421,753.03 : x
  2. Step 2: Convert to fraction form
    765,924.25/1,056,966.56 = 421,753.03/x
  3. Step 3: Cross multiply
    765,924.25x = 1,056,966.56 × 421,753.03
  4. Step 4: Simplify right side
    765,924.25x = 445,778,849,288.68
  5. Step 5: Solve for x
    x = 445,778,849,288.68/765,924.25
  6. Step 6: Final answer
    x = 582,014.28

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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.