Home / 668,346.72-1,003,018.20-268,990.80

Finding the Fourth Proportional to 668,346.72, 1,003,018.20 and 268,990.80

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Solution

The fourth proportional to 668,346.72, 1,003,018.20 and 268,990.80 is: 403,686.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,346.72 : 1,003,018.20 = 268,990.80 : x
  2. Step 2: Convert to fraction form
    668,346.72/1,003,018.20 = 268,990.80/x
  3. Step 3: Cross multiply
    668,346.72x = 1,003,018.20 × 268,990.80
  4. Step 4: Simplify right side
    668,346.72x = 269,802,668,032.56
  5. Step 5: Solve for x
    x = 269,802,668,032.56/668,346.72
  6. Step 6: Final answer
    x = 403,686.68

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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.