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Finding the Fourth Proportional to 631,002.75, 871,704.95 and 545,972.19

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Solution

The fourth proportional to 631,002.75, 871,704.95 and 545,972.19 is: 754,238.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,002.75 : 871,704.95 = 545,972.19 : x
  2. Step 2: Convert to fraction form
    631,002.75/871,704.95 = 545,972.19/x
  3. Step 3: Cross multiply
    631,002.75x = 871,704.95 × 545,972.19
  4. Step 4: Simplify right side
    631,002.75x = 475,926,660,585.34
  5. Step 5: Solve for x
    x = 475,926,660,585.34/631,002.75
  6. Step 6: Final answer
    x = 754,238.65

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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.