Home / 708,961.20-1,063,642.72-288,538.80

Finding the Fourth Proportional to 708,961.20, 1,063,642.72 and 288,538.80

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Solution

The fourth proportional to 708,961.20, 1,063,642.72 and 288,538.80 is: 432,889.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,961.20 : 1,063,642.72 = 288,538.80 : x
  2. Step 2: Convert to fraction form
    708,961.20/1,063,642.72 = 288,538.80/x
  3. Step 3: Cross multiply
    708,961.20x = 1,063,642.72 × 288,538.80
  4. Step 4: Simplify right side
    708,961.20x = 306,902,194,057.54
  5. Step 5: Solve for x
    x = 306,902,194,057.54/708,961.20
  6. Step 6: Final answer
    x = 432,889.97

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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.