Home / 385,726.60-577,812.30-267,531.40

Finding the Fourth Proportional to 385,726.60, 577,812.30 and 267,531.40

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Solution

The fourth proportional to 385,726.60, 577,812.30 and 267,531.40 is: 400,757.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,726.60 : 577,812.30 = 267,531.40 : x
  2. Step 2: Convert to fraction form
    385,726.60/577,812.30 = 267,531.40/x
  3. Step 3: Cross multiply
    385,726.60x = 577,812.30 × 267,531.40
  4. Step 4: Simplify right side
    385,726.60x = 154,582,933,556.22
  5. Step 5: Solve for x
    x = 154,582,933,556.22/385,726.60
  6. Step 6: Final answer
    x = 400,757.77

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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.