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Finding the Fourth Proportional to 556,077.60, 834,116.40 and 331,691.40

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Solution

The fourth proportional to 556,077.60, 834,116.40 and 331,691.40 is: 497,537.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,077.60 : 834,116.40 = 331,691.40 : x
  2. Step 2: Convert to fraction form
    556,077.60/834,116.40 = 331,691.40/x
  3. Step 3: Cross multiply
    556,077.60x = 834,116.40 × 331,691.40
  4. Step 4: Simplify right side
    556,077.60x = 276,669,236,478.96
  5. Step 5: Solve for x
    x = 276,669,236,478.96/556,077.60
  6. Step 6: Final answer
    x = 497,537.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.