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Finding the Fourth Proportional to 631,567.26, 871,568.91 and 345,087.32

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Solution

The fourth proportional to 631,567.26, 871,568.91 and 345,087.32 is: 476,223.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,567.26 : 871,568.91 = 345,087.32 : x
  2. Step 2: Convert to fraction form
    631,567.26/871,568.91 = 345,087.32/x
  3. Step 3: Cross multiply
    631,567.26x = 871,568.91 × 345,087.32
  4. Step 4: Simplify right side
    631,567.26x = 300,767,374,989.38
  5. Step 5: Solve for x
    x = 300,767,374,989.38/631,567.26
  6. Step 6: Final answer
    x = 476,223.82

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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.