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Finding the Fourth Proportional to 556,228.80, 834,343.20 and 331,842.60

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Solution

The fourth proportional to 556,228.80, 834,343.20 and 331,842.60 is: 497,763.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,228.80 : 834,343.20 = 331,842.60 : x
  2. Step 2: Convert to fraction form
    556,228.80/834,343.20 = 331,842.60/x
  3. Step 3: Cross multiply
    556,228.80x = 834,343.20 × 331,842.60
  4. Step 4: Simplify right side
    556,228.80x = 276,870,616,780.32
  5. Step 5: Solve for x
    x = 276,870,616,780.32/556,228.80
  6. Step 6: Final answer
    x = 497,763.90

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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.