Home / 871,232.75-1,307,184.16-421,919.07

Finding the Fourth Proportional to 871,232.75, 1,307,184.16 and 421,919.07

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Solution

The fourth proportional to 871,232.75, 1,307,184.16 and 421,919.07 is: 633,040.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,232.75 : 1,307,184.16 = 421,919.07 : x
  2. Step 2: Convert to fraction form
    871,232.75/1,307,184.16 = 421,919.07/x
  3. Step 3: Cross multiply
    871,232.75x = 1,307,184.16 × 421,919.07
  4. Step 4: Simplify right side
    871,232.75x = 551,525,925,105.93
  5. Step 5: Solve for x
    x = 551,525,925,105.93/871,232.75
  6. Step 6: Final answer
    x = 633,040.86

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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.