Home / 1,152,392.48-1,589,857.68-721,922.72

Finding the Fourth Proportional to 1,152,392.48, 1,589,857.68 and 721,922.72

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Solution

The fourth proportional to 1,152,392.48, 1,589,857.68 and 721,922.72 is: 995,975.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,392.48 : 1,589,857.68 = 721,922.72 : x
  2. Step 2: Convert to fraction form
    1,152,392.48/1,589,857.68 = 721,922.72/x
  3. Step 3: Cross multiply
    1,152,392.48x = 1,589,857.68 × 721,922.72
  4. Step 4: Simplify right side
    1,152,392.48x = 1,147,754,380,758.49
  5. Step 5: Solve for x
    x = 1,147,754,380,758.49/1,152,392.48
  6. Step 6: Final answer
    x = 995,975.24

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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.