Home / 1,240,128.45-1,859,468.61-481,082.85

Finding the Fourth Proportional to 1,240,128.45, 1,859,468.61 and 481,082.85

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Solution

The fourth proportional to 1,240,128.45, 1,859,468.61 and 481,082.85 is: 721,343.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,128.45 : 1,859,468.61 = 481,082.85 : x
  2. Step 2: Convert to fraction form
    1,240,128.45/1,859,468.61 = 481,082.85/x
  3. Step 3: Cross multiply
    1,240,128.45x = 1,859,468.61 × 481,082.85
  4. Step 4: Simplify right side
    1,240,128.45x = 894,558,458,384.34
  5. Step 5: Solve for x
    x = 894,558,458,384.34/1,240,128.45
  6. Step 6: Final answer
    x = 721,343.39

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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.