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Finding the Fourth Proportional to 631,568.96, 871,575.36 and 377,069.12

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Solution

The fourth proportional to 631,568.96, 871,575.36 and 377,069.12 is: 520,361.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,568.96 : 871,575.36 = 377,069.12 : x
  2. Step 2: Convert to fraction form
    631,568.96/871,575.36 = 377,069.12/x
  3. Step 3: Cross multiply
    631,568.96x = 871,575.36 × 377,069.12
  4. Step 4: Simplify right side
    631,568.96x = 328,644,154,008.88
  5. Step 5: Solve for x
    x = 328,644,154,008.88/631,568.96
  6. Step 6: Final answer
    x = 520,361.47

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Double scale
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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.