Home / 631,477.80-871,440.04-345,002.66

Finding the Fourth Proportional to 631,477.80, 871,440.04 and 345,002.66

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Solution

The fourth proportional to 631,477.80, 871,440.04 and 345,002.66 is: 476,104.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,477.80 : 871,440.04 = 345,002.66 : x
  2. Step 2: Convert to fraction form
    631,477.80/871,440.04 = 345,002.66/x
  3. Step 3: Cross multiply
    631,477.80x = 871,440.04 × 345,002.66
  4. Step 4: Simplify right side
    631,477.80x = 300,649,131,830.51
  5. Step 5: Solve for x
    x = 300,649,131,830.51/631,477.80
  6. Step 6: Final answer
    x = 476,104.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.