Home / 470,766.12-649,711.68-279,777.84

Finding the Fourth Proportional to 470,766.12, 649,711.68 and 279,777.84

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Solution

The fourth proportional to 470,766.12, 649,711.68 and 279,777.84 is: 386,125.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,766.12 : 649,711.68 = 279,777.84 : x
  2. Step 2: Convert to fraction form
    470,766.12/649,711.68 = 279,777.84/x
  3. Step 3: Cross multiply
    470,766.12x = 649,711.68 × 279,777.84
  4. Step 4: Simplify right side
    470,766.12x = 181,774,930,453.17
  5. Step 5: Solve for x
    x = 181,774,930,453.17/470,766.12
  6. Step 6: Final answer
    x = 386,125.77

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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.