Home / 765,076.12-1,055,802.24-425,544.40

Finding the Fourth Proportional to 765,076.12, 1,055,802.24 and 425,544.40

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Solution

The fourth proportional to 765,076.12, 1,055,802.24 and 425,544.40 is: 587,249.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,076.12 : 1,055,802.24 = 425,544.40 : x
  2. Step 2: Convert to fraction form
    765,076.12/1,055,802.24 = 425,544.40/x
  3. Step 3: Cross multiply
    765,076.12x = 1,055,802.24 × 425,544.40
  4. Step 4: Simplify right side
    765,076.12x = 449,290,730,739.46
  5. Step 5: Solve for x
    x = 449,290,730,739.46/765,076.12
  6. Step 6: Final answer
    x = 587,249.71

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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.