Home / 1,508,712.94-2,082,034.67-820,379.87

Finding the Fourth Proportional to 1,508,712.94, 2,082,034.67 and 820,379.87

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Solution

The fourth proportional to 1,508,712.94, 2,082,034.67 and 820,379.87 is: 1,132,130.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508,712.94 : 2,082,034.67 = 820,379.87 : x
  2. Step 2: Convert to fraction form
    1,508,712.94/2,082,034.67 = 820,379.87/x
  3. Step 3: Cross multiply
    1,508,712.94x = 2,082,034.67 × 820,379.87
  4. Step 4: Simplify right side
    1,508,712.94x = 1,708,059,317,398.02
  5. Step 5: Solve for x
    x = 1,708,059,317,398.02/1,508,712.94
  6. Step 6: Final answer
    x = 1,132,130.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.