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Finding the Fourth Proportional to 1,265,327.04, 1,746,195.12 and 721,544.88

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Solution

The fourth proportional to 1,265,327.04, 1,746,195.12 and 721,544.88 is: 995,756.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,327.04 : 1,746,195.12 = 721,544.88 : x
  2. Step 2: Convert to fraction form
    1,265,327.04/1,746,195.12 = 721,544.88/x
  3. Step 3: Cross multiply
    1,265,327.04x = 1,746,195.12 × 721,544.88
  4. Step 4: Simplify right side
    1,265,327.04x = 1,259,958,148,316.99
  5. Step 5: Solve for x
    x = 1,259,958,148,316.99/1,265,327.04
  6. Step 6: Final answer
    x = 995,756.91

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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.