Home / 439,319.47-658,044.78-259,210.80

Finding the Fourth Proportional to 439,319.47, 658,044.78 and 259,210.80

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Solution

The fourth proportional to 439,319.47, 658,044.78 and 259,210.80 is: 388,264.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,319.47 : 658,044.78 = 259,210.80 : x
  2. Step 2: Convert to fraction form
    439,319.47/658,044.78 = 259,210.80/x
  3. Step 3: Cross multiply
    439,319.47x = 658,044.78 × 259,210.80
  4. Step 4: Simplify right side
    439,319.47x = 170,572,313,859.62
  5. Step 5: Solve for x
    x = 170,572,313,859.62/439,319.47
  6. Step 6: Final answer
    x = 388,264.86

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1.5x scale

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.