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Finding the Fourth Proportional to 510,469.20, 765,703.80 and 351,036.90

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Solution

The fourth proportional to 510,469.20, 765,703.80 and 351,036.90 is: 526,555.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,469.20 : 765,703.80 = 351,036.90 : x
  2. Step 2: Convert to fraction form
    510,469.20/765,703.80 = 351,036.90/x
  3. Step 3: Cross multiply
    510,469.20x = 765,703.80 × 351,036.90
  4. Step 4: Simplify right side
    510,469.20x = 268,790,288,270.22
  5. Step 5: Solve for x
    x = 268,790,288,270.22/510,469.20
  6. Step 6: Final answer
    x = 526,555.35

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Similar ratio
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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.