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Finding the Fourth Proportional to 550,438.80, 826,176.60 and 340,486.80

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Solution

The fourth proportional to 550,438.80, 826,176.60 and 340,486.80 is: 511,050.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,438.80 : 826,176.60 = 340,486.80 : x
  2. Step 2: Convert to fraction form
    550,438.80/826,176.60 = 340,486.80/x
  3. Step 3: Cross multiply
    550,438.80x = 826,176.60 × 340,486.80
  4. Step 4: Simplify right side
    550,438.80x = 281,302,226,768.88
  5. Step 5: Solve for x
    x = 281,302,226,768.88/550,438.80
  6. Step 6: Final answer
    x = 511,050.87

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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.