Home / 935,531.86-1,403,083.29-261,660.78

Finding the Fourth Proportional to 935,531.86, 1,403,083.29 and 261,660.78

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Solution

The fourth proportional to 935,531.86, 1,403,083.29 and 261,660.78 is: 392,431.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,531.86 : 1,403,083.29 = 261,660.78 : x
  2. Step 2: Convert to fraction form
    935,531.86/1,403,083.29 = 261,660.78/x
  3. Step 3: Cross multiply
    935,531.86x = 1,403,083.29 × 261,660.78
  4. Step 4: Simplify right side
    935,531.86x = 367,131,865,331.28
  5. Step 5: Solve for x
    x = 367,131,865,331.28/935,531.86
  6. Step 6: Final answer
    x = 392,431.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.