Home / 470,776.78-649,766.37-279,753.27

Finding the Fourth Proportional to 470,776.78, 649,766.37 and 279,753.27

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Solution

The fourth proportional to 470,776.78, 649,766.37 and 279,753.27 is: 386,115.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,776.78 : 649,766.37 = 279,753.27 : x
  2. Step 2: Convert to fraction form
    470,776.78/649,766.37 = 279,753.27/x
  3. Step 3: Cross multiply
    470,776.78x = 649,766.37 × 279,753.27
  4. Step 4: Simplify right side
    470,776.78x = 181,774,266,743.53
  5. Step 5: Solve for x
    x = 181,774,266,743.53/470,776.78
  6. Step 6: Final answer
    x = 386,115.62

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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.