Home / 489,669.72-675,756.32-274,826.16

Finding the Fourth Proportional to 489,669.72, 675,756.32 and 274,826.16

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Solution

The fourth proportional to 489,669.72, 675,756.32 and 274,826.16 is: 379,266.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,669.72 : 675,756.32 = 274,826.16 : x
  2. Step 2: Convert to fraction form
    489,669.72/675,756.32 = 274,826.16/x
  3. Step 3: Cross multiply
    489,669.72x = 675,756.32 × 274,826.16
  4. Step 4: Simplify right side
    489,669.72x = 185,715,514,521.33
  5. Step 5: Solve for x
    x = 185,715,514,521.33/489,669.72
  6. Step 6: Final answer
    x = 379,266.90

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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.