Home / 814,759.80-1,222,139.70-477,961.80

Finding the Fourth Proportional to 814,759.80, 1,222,139.70 and 477,961.80

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Solution

The fourth proportional to 814,759.80, 1,222,139.70 and 477,961.80 is: 716,942.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,759.80 : 1,222,139.70 = 477,961.80 : x
  2. Step 2: Convert to fraction form
    814,759.80/1,222,139.70 = 477,961.80/x
  3. Step 3: Cross multiply
    814,759.80x = 1,222,139.70 × 477,961.80
  4. Step 4: Simplify right side
    814,759.80x = 584,136,090,863.46
  5. Step 5: Solve for x
    x = 584,136,090,863.46/814,759.80
  6. Step 6: Final answer
    x = 716,942.70

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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.