Home / 651,279.20-976,918.80-451,824.80

Finding the Fourth Proportional to 651,279.20, 976,918.80 and 451,824.80

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Solution

The fourth proportional to 651,279.20, 976,918.80 and 451,824.80 is: 677,737.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,279.20 : 976,918.80 = 451,824.80 : x
  2. Step 2: Convert to fraction form
    651,279.20/976,918.80 = 451,824.80/x
  3. Step 3: Cross multiply
    651,279.20x = 976,918.80 × 451,824.80
  4. Step 4: Simplify right side
    651,279.20x = 441,396,141,426.24
  5. Step 5: Solve for x
    x = 441,396,141,426.24/651,279.20
  6. Step 6: Final answer
    x = 677,737.20

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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.