Home / 1,420,082.56-1,959,640.56-775,378.24

Finding the Fourth Proportional to 1,420,082.56, 1,959,640.56 and 775,378.24

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Solution

The fourth proportional to 1,420,082.56, 1,959,640.56 and 775,378.24 is: 1,069,981.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,082.56 : 1,959,640.56 = 775,378.24 : x
  2. Step 2: Convert to fraction form
    1,420,082.56/1,959,640.56 = 775,378.24/x
  3. Step 3: Cross multiply
    1,420,082.56x = 1,959,640.56 × 775,378.24
  4. Step 4: Simplify right side
    1,420,082.56x = 1,519,462,648,445.41
  5. Step 5: Solve for x
    x = 1,519,462,648,445.41/1,420,082.56
  6. Step 6: Final answer
    x = 1,069,981.91

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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.