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Finding the Fourth Proportional to 510,689.58, 764,594.20 and 270,258.90

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Solution

The fourth proportional to 510,689.58, 764,594.20 and 270,258.90 is: 404,626.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,689.58 : 764,594.20 = 270,258.90 : x
  2. Step 2: Convert to fraction form
    510,689.58/764,594.20 = 270,258.90/x
  3. Step 3: Cross multiply
    510,689.58x = 764,594.20 × 270,258.90
  4. Step 4: Simplify right side
    510,689.58x = 206,638,387,438.38
  5. Step 5: Solve for x
    x = 206,638,387,438.38/510,689.58
  6. Step 6: Final answer
    x = 404,626.21

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1.5x scale

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.