Home / 801,428.86-1,105,961.40-457,255.78

Finding the Fourth Proportional to 801,428.86, 1,105,961.40 and 457,255.78

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Solution

The fourth proportional to 801,428.86, 1,105,961.40 and 457,255.78 is: 631,007.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,428.86 : 1,105,961.40 = 457,255.78 : x
  2. Step 2: Convert to fraction form
    801,428.86/1,105,961.40 = 457,255.78/x
  3. Step 3: Cross multiply
    801,428.86x = 1,105,961.40 × 457,255.78
  4. Step 4: Simplify right side
    801,428.86x = 505,707,242,606.89
  5. Step 5: Solve for x
    x = 505,707,242,606.89/801,428.86
  6. Step 6: Final answer
    x = 631,007.03

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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.