Home / 871,771.61-1,307,288.36-272,571.89

Finding the Fourth Proportional to 871,771.61, 1,307,288.36 and 272,571.89

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Solution

The fourth proportional to 871,771.61, 1,307,288.36 and 272,571.89 is: 408,742.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,771.61 : 1,307,288.36 = 272,571.89 : x
  2. Step 2: Convert to fraction form
    871,771.61/1,307,288.36 = 272,571.89/x
  3. Step 3: Cross multiply
    871,771.61x = 1,307,288.36 × 272,571.89
  4. Step 4: Simplify right side
    871,771.61x = 356,330,053,205.19
  5. Step 5: Solve for x
    x = 356,330,053,205.19/871,771.61
  6. Step 6: Final answer
    x = 408,742.44

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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.