Home / 765,008.14-1,055,646.15-442,738.20

Finding the Fourth Proportional to 765,008.14, 1,055,646.15 and 442,738.20

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Solution

The fourth proportional to 765,008.14, 1,055,646.15 and 442,738.20 is: 610,941.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,008.14 : 1,055,646.15 = 442,738.20 : x
  2. Step 2: Convert to fraction form
    765,008.14/1,055,646.15 = 442,738.20/x
  3. Step 3: Cross multiply
    765,008.14x = 1,055,646.15 × 442,738.20
  4. Step 4: Simplify right side
    765,008.14x = 467,374,876,287.93
  5. Step 5: Solve for x
    x = 467,374,876,287.93/765,008.14
  6. Step 6: Final answer
    x = 610,941.05

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1.5x scale

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.