Home / 1,279,443.96-1,918,128.90-532,049.40

Finding the Fourth Proportional to 1,279,443.96, 1,918,128.90 and 532,049.40

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Solution

The fourth proportional to 1,279,443.96, 1,918,128.90 and 532,049.40 is: 797,642.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,443.96 : 1,918,128.90 = 532,049.40 : x
  2. Step 2: Convert to fraction form
    1,279,443.96/1,918,128.90 = 532,049.40/x
  3. Step 3: Cross multiply
    1,279,443.96x = 1,918,128.90 × 532,049.40
  4. Step 4: Simplify right side
    1,279,443.96x = 1,020,539,330,367.66
  5. Step 5: Solve for x
    x = 1,020,539,330,367.66/1,279,443.96
  6. Step 6: Final answer
    x = 797,642.85

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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.