Home / 521,641.56-782,515.36-180,040.52

Finding the Fourth Proportional to 521,641.56, 782,515.36 and 180,040.52

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Solution

The fourth proportional to 521,641.56, 782,515.36 and 180,040.52 is: 270,079.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,641.56 : 782,515.36 = 180,040.52 : x
  2. Step 2: Convert to fraction form
    521,641.56/782,515.36 = 180,040.52/x
  3. Step 3: Cross multiply
    521,641.56x = 782,515.36 × 180,040.52
  4. Step 4: Simplify right side
    521,641.56x = 140,884,472,322.39
  5. Step 5: Solve for x
    x = 140,884,472,322.39/521,641.56
  6. Step 6: Final answer
    x = 270,079.08

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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.