Home / 831,639.16-1,147,660.48-469,061.90

Finding the Fourth Proportional to 831,639.16, 1,147,660.48 and 469,061.90

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Solution

The fourth proportional to 831,639.16, 1,147,660.48 and 469,061.90 is: 647,304.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,639.16 : 1,147,660.48 = 469,061.90 : x
  2. Step 2: Convert to fraction form
    831,639.16/1,147,660.48 = 469,061.90/x
  3. Step 3: Cross multiply
    831,639.16x = 1,147,660.48 × 469,061.90
  4. Step 4: Simplify right side
    831,639.16x = 538,323,804,455.46
  5. Step 5: Solve for x
    x = 538,323,804,455.46/831,639.16
  6. Step 6: Final answer
    x = 647,304.54

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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.