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Finding the Fourth Proportional to 631,565.66, 871,560.81 and 341,177.32

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Solution

The fourth proportional to 631,565.66, 871,560.81 and 341,177.32 is: 470,824.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,565.66 : 871,560.81 = 341,177.32 : x
  2. Step 2: Convert to fraction form
    631,565.66/871,560.81 = 341,177.32/x
  3. Step 3: Cross multiply
    631,565.66x = 871,560.81 × 341,177.32
  4. Step 4: Simplify right side
    631,565.66x = 297,356,777,559.75
  5. Step 5: Solve for x
    x = 297,356,777,559.75/631,565.66
  6. Step 6: Final answer
    x = 470,824.81

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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.