Home / 813,884.77-1,221,081.24-490,027.87

Finding the Fourth Proportional to 813,884.77, 1,221,081.24 and 490,027.87

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Solution

The fourth proportional to 813,884.77, 1,221,081.24 and 490,027.87 is: 735,194.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,884.77 : 1,221,081.24 = 490,027.87 : x
  2. Step 2: Convert to fraction form
    813,884.77/1,221,081.24 = 490,027.87/x
  3. Step 3: Cross multiply
    813,884.77x = 1,221,081.24 × 490,027.87
  4. Step 4: Simplify right side
    813,884.77x = 598,363,830,578.61
  5. Step 5: Solve for x
    x = 598,363,830,578.61/813,884.77
  6. Step 6: Final answer
    x = 735,194.78

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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.