Home / 831,938.93-1,147,976.97-469,341.62

Finding the Fourth Proportional to 831,938.93, 1,147,976.97 and 469,341.62

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Solution

The fourth proportional to 831,938.93, 1,147,976.97 and 469,341.62 is: 647,635.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,938.93 : 1,147,976.97 = 469,341.62 : x
  2. Step 2: Convert to fraction form
    831,938.93/1,147,976.97 = 469,341.62/x
  3. Step 3: Cross multiply
    831,938.93x = 1,147,976.97 × 469,341.62
  4. Step 4: Simplify right side
    831,938.93x = 538,793,365,082.61
  5. Step 5: Solve for x
    x = 538,793,365,082.61/831,938.93
  6. Step 6: Final answer
    x = 647,635.72

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1.5x scale

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.