Home / 765,685.62-1,148,560.14-225,941.91

Finding the Fourth Proportional to 765,685.62, 1,148,560.14 and 225,941.91

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Solution

The fourth proportional to 765,685.62, 1,148,560.14 and 225,941.91 is: 338,922.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,685.62 : 1,148,560.14 = 225,941.91 : x
  2. Step 2: Convert to fraction form
    765,685.62/1,148,560.14 = 225,941.91/x
  3. Step 3: Cross multiply
    765,685.62x = 1,148,560.14 × 225,941.91
  4. Step 4: Simplify right side
    765,685.62x = 259,507,871,781.47
  5. Step 5: Solve for x
    x = 259,507,871,781.47/765,685.62
  6. Step 6: Final answer
    x = 338,922.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.