Home / 638,082.75-880,572.74-351,621.30

Finding the Fourth Proportional to 638,082.75, 880,572.74 and 351,621.30

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Solution

The fourth proportional to 638,082.75, 880,572.74 and 351,621.30 is: 485,247.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,082.75 : 880,572.74 = 351,621.30 : x
  2. Step 2: Convert to fraction form
    638,082.75/880,572.74 = 351,621.30/x
  3. Step 3: Cross multiply
    638,082.75x = 880,572.74 × 351,621.30
  4. Step 4: Simplify right side
    638,082.75x = 309,628,129,825.26
  5. Step 5: Solve for x
    x = 309,628,129,825.26/638,082.75
  6. Step 6: Final answer
    x = 485,247.61

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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.