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Finding the Fourth Proportional to 558,254.25, 770,390.87 and 303,610.91

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Solution

The fourth proportional to 558,254.25, 770,390.87 and 303,610.91 is: 418,983.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,254.25 : 770,390.87 = 303,610.91 : x
  2. Step 2: Convert to fraction form
    558,254.25/770,390.87 = 303,610.91/x
  3. Step 3: Cross multiply
    558,254.25x = 770,390.87 × 303,610.91
  4. Step 4: Simplify right side
    558,254.25x = 233,899,067,726.38
  5. Step 5: Solve for x
    x = 233,899,067,726.38/558,254.25
  6. Step 6: Final answer
    x = 418,983.05

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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.