Home / 871,423.80-1,306,163.70-338,767.80

Finding the Fourth Proportional to 871,423.80, 1,306,163.70 and 338,767.80

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Solution

The fourth proportional to 871,423.80, 1,306,163.70 and 338,767.80 is: 507,773.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,423.80 : 1,306,163.70 = 338,767.80 : x
  2. Step 2: Convert to fraction form
    871,423.80/1,306,163.70 = 338,767.80/x
  3. Step 3: Cross multiply
    871,423.80x = 1,306,163.70 × 338,767.80
  4. Step 4: Simplify right side
    871,423.80x = 442,486,203,088.86
  5. Step 5: Solve for x
    x = 442,486,203,088.86/871,423.80
  6. Step 6: Final answer
    x = 507,773.83

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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.