Home / 1,216,481.76-1,678,695.84-707,144.04

Finding the Fourth Proportional to 1,216,481.76, 1,678,695.84 and 707,144.04

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Solution

The fourth proportional to 1,216,481.76, 1,678,695.84 and 707,144.04 is: 975,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,481.76 : 1,678,695.84 = 707,144.04 : x
  2. Step 2: Convert to fraction form
    1,216,481.76/1,678,695.84 = 707,144.04/x
  3. Step 3: Cross multiply
    1,216,481.76x = 1,678,695.84 × 707,144.04
  4. Step 4: Simplify right side
    1,216,481.76x = 1,187,079,758,228.79
  5. Step 5: Solve for x
    x = 1,187,079,758,228.79/1,216,481.76
  6. Step 6: Final answer
    x = 975,830.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.