Home / 1,294,422.60-1,786,311.48-721,499.10

Finding the Fourth Proportional to 1,294,422.60, 1,786,311.48 and 721,499.10

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Solution

The fourth proportional to 1,294,422.60, 1,786,311.48 and 721,499.10 is: 995,673.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,422.60 : 1,786,311.48 = 721,499.10 : x
  2. Step 2: Convert to fraction form
    1,294,422.60/1,786,311.48 = 721,499.10/x
  3. Step 3: Cross multiply
    1,294,422.60x = 1,786,311.48 × 721,499.10
  4. Step 4: Simplify right side
    1,294,422.60x = 1,288,822,125,139.67
  5. Step 5: Solve for x
    x = 1,288,822,125,139.67/1,294,422.60
  6. Step 6: Final answer
    x = 995,673.38

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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.