Home / 515,445.90-772,858.20-231,085.02

Finding the Fourth Proportional to 515,445.90, 772,858.20 and 231,085.02

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Solution

The fourth proportional to 515,445.90, 772,858.20 and 231,085.02 is: 346,488.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,445.90 : 772,858.20 = 231,085.02 : x
  2. Step 2: Convert to fraction form
    515,445.90/772,858.20 = 231,085.02/x
  3. Step 3: Cross multiply
    515,445.90x = 772,858.20 × 231,085.02
  4. Step 4: Simplify right side
    515,445.90x = 178,595,952,604.16
  5. Step 5: Solve for x
    x = 178,595,952,604.16/515,445.90
  6. Step 6: Final answer
    x = 346,488.26

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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.