Home / 803,550.05-1,205,311.78-323,766.14

Finding the Fourth Proportional to 803,550.05, 1,205,311.78 and 323,766.14

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Solution

The fourth proportional to 803,550.05, 1,205,311.78 and 323,766.14 is: 485,643.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,550.05 : 1,205,311.78 = 323,766.14 : x
  2. Step 2: Convert to fraction form
    803,550.05/1,205,311.78 = 323,766.14/x
  3. Step 3: Cross multiply
    803,550.05x = 1,205,311.78 × 323,766.14
  4. Step 4: Simplify right side
    803,550.05x = 390,239,139,819.91
  5. Step 5: Solve for x
    x = 390,239,139,819.91/803,550.05
  6. Step 6: Final answer
    x = 485,643.85

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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.