Home / 729,143.60-1,093,715.40-477,201.20

Finding the Fourth Proportional to 729,143.60, 1,093,715.40 and 477,201.20

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Solution

The fourth proportional to 729,143.60, 1,093,715.40 and 477,201.20 is: 715,801.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,143.60 : 1,093,715.40 = 477,201.20 : x
  2. Step 2: Convert to fraction form
    729,143.60/1,093,715.40 = 477,201.20/x
  3. Step 3: Cross multiply
    729,143.60x = 1,093,715.40 × 477,201.20
  4. Step 4: Simplify right side
    729,143.60x = 521,922,301,338.48
  5. Step 5: Solve for x
    x = 521,922,301,338.48/729,143.60
  6. Step 6: Final answer
    x = 715,801.80

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Similar ratio
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1.5x scale

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.