Home / 813,587.56-1,122,760.98-469,494.90

Finding the Fourth Proportional to 813,587.56, 1,122,760.98 and 469,494.90

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Solution

The fourth proportional to 813,587.56, 1,122,760.98 and 469,494.90 is: 647,908.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,587.56 : 1,122,760.98 = 469,494.90 : x
  2. Step 2: Convert to fraction form
    813,587.56/1,122,760.98 = 469,494.90/x
  3. Step 3: Cross multiply
    813,587.56x = 1,122,760.98 × 469,494.90
  4. Step 4: Simplify right side
    813,587.56x = 527,130,554,029.00
  5. Step 5: Solve for x
    x = 527,130,554,029.00/813,587.56
  6. Step 6: Final answer
    x = 647,908.82

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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.