Home / 831,728.68-1,147,784.16-469,151.44

Finding the Fourth Proportional to 831,728.68, 1,147,784.16 and 469,151.44

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Solution

The fourth proportional to 831,728.68, 1,147,784.16 and 469,151.44 is: 647,428.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,728.68 : 1,147,784.16 = 469,151.44 : x
  2. Step 2: Convert to fraction form
    831,728.68/1,147,784.16 = 469,151.44/x
  3. Step 3: Cross multiply
    831,728.68x = 1,147,784.16 × 469,151.44
  4. Step 4: Simplify right side
    831,728.68x = 538,484,591,473.19
  5. Step 5: Solve for x
    x = 538,484,591,473.19/831,728.68
  6. Step 6: Final answer
    x = 647,428.19

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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.