Home / 746,709.30-1,120,064.52-319,968.39

Finding the Fourth Proportional to 746,709.30, 1,120,064.52 and 319,968.39

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Solution

The fourth proportional to 746,709.30, 1,120,064.52 and 319,968.39 is: 479,952.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,709.30 : 1,120,064.52 = 319,968.39 : x
  2. Step 2: Convert to fraction form
    746,709.30/1,120,064.52 = 319,968.39/x
  3. Step 3: Cross multiply
    746,709.30x = 1,120,064.52 × 319,968.39
  4. Step 4: Simplify right side
    746,709.30x = 358,385,241,160.52
  5. Step 5: Solve for x
    x = 358,385,241,160.52/746,709.30
  6. Step 6: Final answer
    x = 479,952.83

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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.