Home / 831,881.80-1,148,138.04-469,408.42

Finding the Fourth Proportional to 831,881.80, 1,148,138.04 and 469,408.42

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Solution

The fourth proportional to 831,881.80, 1,148,138.04 and 469,408.42 is: 647,863.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,881.80 : 1,148,138.04 = 469,408.42 : x
  2. Step 2: Convert to fraction form
    831,881.80/1,148,138.04 = 469,408.42/x
  3. Step 3: Cross multiply
    831,881.80x = 1,148,138.04 × 469,408.42
  4. Step 4: Simplify right side
    831,881.80x = 538,945,663,298.30
  5. Step 5: Solve for x
    x = 538,945,663,298.30/831,881.80
  6. Step 6: Final answer
    x = 647,863.27

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Double scale
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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.