Home / 515,286.19-772,555.60-346,387.56

Finding the Fourth Proportional to 515,286.19, 772,555.60 and 346,387.56

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Solution

The fourth proportional to 515,286.19, 772,555.60 and 346,387.56 is: 519,330.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,286.19 : 772,555.60 = 346,387.56 : x
  2. Step 2: Convert to fraction form
    515,286.19/772,555.60 = 346,387.56/x
  3. Step 3: Cross multiply
    515,286.19x = 772,555.60 × 346,387.56
  4. Step 4: Simplify right side
    515,286.19x = 267,603,649,248.34
  5. Step 5: Solve for x
    x = 267,603,649,248.34/515,286.19
  6. Step 6: Final answer
    x = 519,330.14

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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.