Home / 1,520,393.36-2,279,916.08-810,289.04

Finding the Fourth Proportional to 1,520,393.36, 2,279,916.08 and 810,289.04

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Solution

The fourth proportional to 1,520,393.36, 2,279,916.08 and 810,289.04 is: 1,215,074.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,393.36 : 2,279,916.08 = 810,289.04 : x
  2. Step 2: Convert to fraction form
    1,520,393.36/2,279,916.08 = 810,289.04/x
  3. Step 3: Cross multiply
    1,520,393.36x = 2,279,916.08 × 810,289.04
  4. Step 4: Simplify right side
    1,520,393.36x = 1,847,391,011,743.76
  5. Step 5: Solve for x
    x = 1,847,391,011,743.76/1,520,393.36
  6. Step 6: Final answer
    x = 1,215,074.38

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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.