Home / 674,778.03-1,011,667.07-408,475.55

Finding the Fourth Proportional to 674,778.03, 1,011,667.07 and 408,475.55

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Solution

The fourth proportional to 674,778.03, 1,011,667.07 and 408,475.55 is: 612,410.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,778.03 : 1,011,667.07 = 408,475.55 : x
  2. Step 2: Convert to fraction form
    674,778.03/1,011,667.07 = 408,475.55/x
  3. Step 3: Cross multiply
    674,778.03x = 1,011,667.07 × 408,475.55
  4. Step 4: Simplify right side
    674,778.03x = 413,241,255,734.43
  5. Step 5: Solve for x
    x = 413,241,255,734.43/674,778.03
  6. Step 6: Final answer
    x = 612,410.66

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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.