Home / 831,988.85-1,148,121.23-469,446.44

Finding the Fourth Proportional to 831,988.85, 1,148,121.23 and 469,446.44

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Solution

The fourth proportional to 831,988.85, 1,148,121.23 and 469,446.44 is: 647,822.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,988.85 : 1,148,121.23 = 469,446.44 : x
  2. Step 2: Convert to fraction form
    831,988.85/1,148,121.23 = 469,446.44/x
  3. Step 3: Cross multiply
    831,988.85x = 1,148,121.23 × 469,446.44
  4. Step 4: Simplify right side
    831,988.85x = 538,981,416,024.08
  5. Step 5: Solve for x
    x = 538,981,416,024.08/831,988.85
  6. Step 6: Final answer
    x = 647,822.89

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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.