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Finding the Fourth Proportional to 504,026.20, 756,039.30 and 379,610.20

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Solution

The fourth proportional to 504,026.20, 756,039.30 and 379,610.20 is: 569,415.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,026.20 : 756,039.30 = 379,610.20 : x
  2. Step 2: Convert to fraction form
    504,026.20/756,039.30 = 379,610.20/x
  3. Step 3: Cross multiply
    504,026.20x = 756,039.30 × 379,610.20
  4. Step 4: Simplify right side
    504,026.20x = 287,000,229,880.86
  5. Step 5: Solve for x
    x = 287,000,229,880.86/504,026.20
  6. Step 6: Final answer
    x = 569,415.30

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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.