Home / 831,082.32-1,246,180.41-431,320.59

Finding the Fourth Proportional to 831,082.32, 1,246,180.41 and 431,320.59

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Solution

The fourth proportional to 831,082.32, 1,246,180.41 and 431,320.59 is: 646,750.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,082.32 : 1,246,180.41 = 431,320.59 : x
  2. Step 2: Convert to fraction form
    831,082.32/1,246,180.41 = 431,320.59/x
  3. Step 3: Cross multiply
    831,082.32x = 1,246,180.41 × 431,320.59
  4. Step 4: Simplify right side
    831,082.32x = 537,503,269,687.64
  5. Step 5: Solve for x
    x = 537,503,269,687.64/831,082.32
  6. Step 6: Final answer
    x = 646,750.94

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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.