Home / 1,333,535.85-1,840,279.65-721,688.79

Finding the Fourth Proportional to 1,333,535.85, 1,840,279.65 and 721,688.79

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Solution

The fourth proportional to 1,333,535.85, 1,840,279.65 and 721,688.79 is: 995,930.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,535.85 : 1,840,279.65 = 721,688.79 : x
  2. Step 2: Convert to fraction form
    1,333,535.85/1,840,279.65 = 721,688.79/x
  3. Step 3: Cross multiply
    1,333,535.85x = 1,840,279.65 × 721,688.79
  4. Step 4: Simplify right side
    1,333,535.85x = 1,328,109,193,870.12
  5. Step 5: Solve for x
    x = 1,328,109,193,870.12/1,333,535.85
  6. Step 6: Final answer
    x = 995,930.63

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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.