Home / 799,423.20-1,199,134.80-426,175.20

Finding the Fourth Proportional to 799,423.20, 1,199,134.80 and 426,175.20

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Solution

The fourth proportional to 799,423.20, 1,199,134.80 and 426,175.20 is: 639,262.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    799,423.20 : 1,199,134.80 = 426,175.20 : x
  2. Step 2: Convert to fraction form
    799,423.20/1,199,134.80 = 426,175.20/x
  3. Step 3: Cross multiply
    799,423.20x = 1,199,134.80 × 426,175.20
  4. Step 4: Simplify right side
    799,423.20x = 511,041,513,216.96
  5. Step 5: Solve for x
    x = 511,041,513,216.96/799,423.20
  6. Step 6: Final answer
    x = 639,262.80

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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.