Home / 831,082.07-1,246,180.04-431,320.34

Finding the Fourth Proportional to 831,082.07, 1,246,180.04 and 431,320.34

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Solution

The fourth proportional to 831,082.07, 1,246,180.04 and 431,320.34 is: 646,750.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,082.07 : 1,246,180.04 = 431,320.34 : x
  2. Step 2: Convert to fraction form
    831,082.07/1,246,180.04 = 431,320.34/x
  3. Step 3: Cross multiply
    831,082.07x = 1,246,180.04 × 431,320.34
  4. Step 4: Simplify right side
    831,082.07x = 537,502,796,397.41
  5. Step 5: Solve for x
    x = 537,502,796,397.41/831,082.07
  6. Step 6: Final answer
    x = 646,750.56

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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.