Home / 631,720.04-871,771.73-345,240.15

Finding the Fourth Proportional to 631,720.04, 871,771.73 and 345,240.15

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Solution

The fourth proportional to 631,720.04, 871,771.73 and 345,240.15 is: 476,430.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,720.04 : 871,771.73 = 345,240.15 : x
  2. Step 2: Convert to fraction form
    631,720.04/871,771.73 = 345,240.15/x
  3. Step 3: Cross multiply
    631,720.04x = 871,771.73 × 345,240.15
  4. Step 4: Simplify right side
    631,720.04x = 300,970,603,694.06
  5. Step 5: Solve for x
    x = 300,970,603,694.06/631,720.04
  6. Step 6: Final answer
    x = 476,430.36

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1.5x scale

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.