Home / 821,540.70-1,230,237.45-539,531.10

Finding the Fourth Proportional to 821,540.70, 1,230,237.45 and 539,531.10

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Solution

The fourth proportional to 821,540.70, 1,230,237.45 and 539,531.10 is: 807,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,540.70 : 1,230,237.45 = 539,531.10 : x
  2. Step 2: Convert to fraction form
    821,540.70/1,230,237.45 = 539,531.10/x
  3. Step 3: Cross multiply
    821,540.70x = 1,230,237.45 × 539,531.10
  4. Step 4: Simplify right side
    821,540.70x = 663,751,364,659.70
  5. Step 5: Solve for x
    x = 663,751,364,659.70/821,540.70
  6. Step 6: Final answer
    x = 807,934.85

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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.