Home / 1,508,971.72-2,082,398.34-829,919.56

Finding the Fourth Proportional to 1,508,971.72, 2,082,398.34 and 829,919.56

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Solution

The fourth proportional to 1,508,971.72, 2,082,398.34 and 829,919.56 is: 1,145,298.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508,971.72 : 2,082,398.34 = 829,919.56 : x
  2. Step 2: Convert to fraction form
    1,508,971.72/2,082,398.34 = 829,919.56/x
  3. Step 3: Cross multiply
    1,508,971.72x = 2,082,398.34 × 829,919.56
  4. Step 4: Simplify right side
    1,508,971.72x = 1,728,223,114,077.53
  5. Step 5: Solve for x
    x = 1,728,223,114,077.53/1,508,971.72
  6. Step 6: Final answer
    x = 1,145,298.54

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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.