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Finding the Fourth Proportional to 631,747.74, 871,868.07 and 359,756.22

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Solution

The fourth proportional to 631,747.74, 871,868.07 and 359,756.22 is: 496,495.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,747.74 : 871,868.07 = 359,756.22 : x
  2. Step 2: Convert to fraction form
    631,747.74/871,868.07 = 359,756.22/x
  3. Step 3: Cross multiply
    631,747.74x = 871,868.07 × 359,756.22
  4. Step 4: Simplify right side
    631,747.74x = 313,659,961,201.90
  5. Step 5: Solve for x
    x = 313,659,961,201.90/631,747.74
  6. Step 6: Final answer
    x = 496,495.58

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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.