Home / 679,162.24-1,018,777.20-258,470.72

Finding the Fourth Proportional to 679,162.24, 1,018,777.20 and 258,470.72

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Solution

The fourth proportional to 679,162.24, 1,018,777.20 and 258,470.72 is: 387,718.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,162.24 : 1,018,777.20 = 258,470.72 : x
  2. Step 2: Convert to fraction form
    679,162.24/1,018,777.20 = 258,470.72/x
  3. Step 3: Cross multiply
    679,162.24x = 1,018,777.20 × 258,470.72
  4. Step 4: Simplify right side
    679,162.24x = 263,324,076,403.58
  5. Step 5: Solve for x
    x = 263,324,076,403.58/679,162.24
  6. Step 6: Final answer
    x = 387,718.96

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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.