Home / 1,778,309.42-2,667,471.13-430,469.86

Finding the Fourth Proportional to 1,778,309.42, 2,667,471.13 and 430,469.86

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Solution

The fourth proportional to 1,778,309.42, 2,667,471.13 and 430,469.86 is: 645,706.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,309.42 : 2,667,471.13 = 430,469.86 : x
  2. Step 2: Convert to fraction form
    1,778,309.42/2,667,471.13 = 430,469.86/x
  3. Step 3: Cross multiply
    1,778,309.42x = 2,667,471.13 × 430,469.86
  4. Step 4: Simplify right side
    1,778,309.42x = 1,148,265,923,885.14
  5. Step 5: Solve for x
    x = 1,148,265,923,885.14/1,778,309.42
  6. Step 6: Final answer
    x = 645,706.48

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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.