Home / 558,504.05-838,177.07-409,126.55

Finding the Fourth Proportional to 558,504.05, 838,177.07 and 409,126.55

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Solution

The fourth proportional to 558,504.05, 838,177.07 and 409,126.55 is: 613,998.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,504.05 : 838,177.07 = 409,126.55 : x
  2. Step 2: Convert to fraction form
    558,504.05/838,177.07 = 409,126.55/x
  3. Step 3: Cross multiply
    558,504.05x = 838,177.07 × 409,126.55
  4. Step 4: Simplify right side
    558,504.05x = 342,920,486,701.69
  5. Step 5: Solve for x
    x = 342,920,486,701.69/558,504.05
  6. Step 6: Final answer
    x = 613,998.22

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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.