Home / 1,520,375.36-2,279,889.12-810,271.04

Finding the Fourth Proportional to 1,520,375.36, 2,279,889.12 and 810,271.04

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Solution

The fourth proportional to 1,520,375.36, 2,279,889.12 and 810,271.04 is: 1,215,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,375.36 : 2,279,889.12 = 810,271.04 : x
  2. Step 2: Convert to fraction form
    1,520,375.36/2,279,889.12 = 810,271.04/x
  3. Step 3: Cross multiply
    1,520,375.36x = 2,279,889.12 × 810,271.04
  4. Step 4: Simplify right side
    1,520,375.36x = 1,847,328,128,347.09
  5. Step 5: Solve for x
    x = 1,847,328,128,347.09/1,520,375.36
  6. Step 6: Final answer
    x = 1,215,047.40

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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.