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Finding the Fourth Proportional to 504,046.20, 756,069.30 and 379,630.20

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Solution

The fourth proportional to 504,046.20, 756,069.30 and 379,630.20 is: 569,445.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,046.20 : 756,069.30 = 379,630.20 : x
  2. Step 2: Convert to fraction form
    504,046.20/756,069.30 = 379,630.20/x
  3. Step 3: Cross multiply
    504,046.20x = 756,069.30 × 379,630.20
  4. Step 4: Simplify right side
    504,046.20x = 287,026,739,572.86
  5. Step 5: Solve for x
    x = 287,026,739,572.86/504,046.20
  6. Step 6: Final answer
    x = 569,445.30

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Half scale
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Double scale
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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.