Home / 1,347,139.68-2,021,031.24-448,589.20

Finding the Fourth Proportional to 1,347,139.68, 2,021,031.24 and 448,589.20

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Solution

The fourth proportional to 1,347,139.68, 2,021,031.24 and 448,589.20 is: 672,990.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,139.68 : 2,021,031.24 = 448,589.20 : x
  2. Step 2: Convert to fraction form
    1,347,139.68/2,021,031.24 = 448,589.20/x
  3. Step 3: Cross multiply
    1,347,139.68x = 2,021,031.24 × 448,589.20
  4. Step 4: Simplify right side
    1,347,139.68x = 906,612,787,126.61
  5. Step 5: Solve for x
    x = 906,612,787,126.61/1,347,139.68
  6. Step 6: Final answer
    x = 672,990.93

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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.