Home / 439,320.48-658,046.28-259,211.80

Finding the Fourth Proportional to 439,320.48, 658,046.28 and 259,211.80

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Solution

The fourth proportional to 439,320.48, 658,046.28 and 259,211.80 is: 388,266.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,320.48 : 658,046.28 = 259,211.80 : x
  2. Step 2: Convert to fraction form
    439,320.48/658,046.28 = 259,211.80/x
  3. Step 3: Cross multiply
    439,320.48x = 658,046.28 × 259,211.80
  4. Step 4: Simplify right side
    439,320.48x = 170,573,360,722.10
  5. Step 5: Solve for x
    x = 170,573,360,722.10/439,320.48
  6. Step 6: Final answer
    x = 388,266.35

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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.