Home / 1,040,877.74-1,436,807.67-678,389.78

Finding the Fourth Proportional to 1,040,877.74, 1,436,807.67 and 678,389.78

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Solution

The fourth proportional to 1,040,877.74, 1,436,807.67 and 678,389.78 is: 936,436.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,877.74 : 1,436,807.67 = 678,389.78 : x
  2. Step 2: Convert to fraction form
    1,040,877.74/1,436,807.67 = 678,389.78/x
  3. Step 3: Cross multiply
    1,040,877.74x = 1,436,807.67 × 678,389.78
  4. Step 4: Simplify right side
    1,040,877.74x = 974,715,640,201.67
  5. Step 5: Solve for x
    x = 974,715,640,201.67/1,040,877.74
  6. Step 6: Final answer
    x = 936,436.24

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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.