Home / 986,512.62-1,479,819.90-312,665.52

Finding the Fourth Proportional to 986,512.62, 1,479,819.90 and 312,665.52

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Solution

The fourth proportional to 986,512.62, 1,479,819.90 and 312,665.52 is: 469,014.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,512.62 : 1,479,819.90 = 312,665.52 : x
  2. Step 2: Convert to fraction form
    986,512.62/1,479,819.90 = 312,665.52/x
  3. Step 3: Cross multiply
    986,512.62x = 1,479,819.90 × 312,665.52
  4. Step 4: Simplify right side
    986,512.62x = 462,688,658,539.85
  5. Step 5: Solve for x
    x = 462,688,658,539.85/986,512.62
  6. Step 6: Final answer
    x = 469,014.43

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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.