Home / 543,909.76-815,789.30-144,583.00

Finding the Fourth Proportional to 543,909.76, 815,789.30 and 144,583.00

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Solution

The fourth proportional to 543,909.76, 815,789.30 and 144,583.00 is: 216,854.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,909.76 : 815,789.30 = 144,583.00 : x
  2. Step 2: Convert to fraction form
    543,909.76/815,789.30 = 144,583.00/x
  3. Step 3: Cross multiply
    543,909.76x = 815,789.30 × 144,583.00
  4. Step 4: Simplify right side
    543,909.76x = 117,949,261,599.51
  5. Step 5: Solve for x
    x = 117,949,261,599.51/543,909.76
  6. Step 6: Final answer
    x = 216,854.47

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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.