Home / 1,543,348.40-2,129,820.24-855,064.88

Finding the Fourth Proportional to 1,543,348.40, 2,129,820.24 and 855,064.88

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Solution

The fourth proportional to 1,543,348.40, 2,129,820.24 and 855,064.88 is: 1,179,989.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,348.40 : 2,129,820.24 = 855,064.88 : x
  2. Step 2: Convert to fraction form
    1,543,348.40/2,129,820.24 = 855,064.88/x
  3. Step 3: Cross multiply
    1,543,348.40x = 2,129,820.24 × 855,064.88
  4. Step 4: Simplify right side
    1,543,348.40x = 1,821,134,487,937.17
  5. Step 5: Solve for x
    x = 1,821,134,487,937.17/1,543,348.40
  6. Step 6: Final answer
    x = 1,179,989.23

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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.