Home / 326,426.28-489,514.77-126,720.87

Finding the Fourth Proportional to 326,426.28, 489,514.77 and 126,720.87

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Solution

The fourth proportional to 326,426.28, 489,514.77 and 126,720.87 is: 190,032.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,426.28 : 489,514.77 = 126,720.87 : x
  2. Step 2: Convert to fraction form
    326,426.28/489,514.77 = 126,720.87/x
  3. Step 3: Cross multiply
    326,426.28x = 489,514.77 × 126,720.87
  4. Step 4: Simplify right side
    326,426.28x = 62,031,737,532.25
  5. Step 5: Solve for x
    x = 62,031,737,532.25/326,426.28
  6. Step 6: Final answer
    x = 190,032.92

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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.