Home / 835,279.20-1,252,918.80-302,799.60

Finding the Fourth Proportional to 835,279.20, 1,252,918.80 and 302,799.60

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Solution

The fourth proportional to 835,279.20, 1,252,918.80 and 302,799.60 is: 454,199.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,279.20 : 1,252,918.80 = 302,799.60 : x
  2. Step 2: Convert to fraction form
    835,279.20/1,252,918.80 = 302,799.60/x
  3. Step 3: Cross multiply
    835,279.20x = 1,252,918.80 × 302,799.60
  4. Step 4: Simplify right side
    835,279.20x = 379,383,311,472.48
  5. Step 5: Solve for x
    x = 379,383,311,472.48/835,279.20
  6. Step 6: Final answer
    x = 454,199.40

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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.