Home / 382,764.78-528,273.45-229,887.39

Finding the Fourth Proportional to 382,764.78, 528,273.45 and 229,887.39

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Solution

The fourth proportional to 382,764.78, 528,273.45 and 229,887.39 is: 317,279.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,764.78 : 528,273.45 = 229,887.39 : x
  2. Step 2: Convert to fraction form
    382,764.78/528,273.45 = 229,887.39/x
  3. Step 3: Cross multiply
    382,764.78x = 528,273.45 × 229,887.39
  4. Step 4: Simplify right side
    382,764.78x = 121,443,404,626.80
  5. Step 5: Solve for x
    x = 121,443,404,626.80/382,764.78
  6. Step 6: Final answer
    x = 317,279.47

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1.5x scale

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.