Home / 1,442,126.20-2,161,663.86-543,178.98

Finding the Fourth Proportional to 1,442,126.20, 2,161,663.86 and 543,178.98

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Solution

The fourth proportional to 1,442,126.20, 2,161,663.86 and 543,178.98 is: 814,193.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,126.20 : 2,161,663.86 = 543,178.98 : x
  2. Step 2: Convert to fraction form
    1,442,126.20/2,161,663.86 = 543,178.98/x
  3. Step 3: Cross multiply
    1,442,126.20x = 2,161,663.86 × 543,178.98
  4. Step 4: Simplify right side
    1,442,126.20x = 1,174,170,370,577.66
  5. Step 5: Solve for x
    x = 1,174,170,370,577.66/1,442,126.20
  6. Step 6: Final answer
    x = 814,193.91

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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.