Home / 470,775.78-649,764.99-279,752.27

Finding the Fourth Proportional to 470,775.78, 649,764.99 and 279,752.27

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Solution

The fourth proportional to 470,775.78, 649,764.99 and 279,752.27 is: 386,114.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,775.78 : 649,764.99 = 279,752.27 : x
  2. Step 2: Convert to fraction form
    470,775.78/649,764.99 = 279,752.27/x
  3. Step 3: Cross multiply
    470,775.78x = 649,764.99 × 279,752.27
  4. Step 4: Simplify right side
    470,775.78x = 181,773,227,670.20
  5. Step 5: Solve for x
    x = 181,773,227,670.20/470,775.78
  6. Step 6: Final answer
    x = 386,114.23

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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.