Home / 853,450.64-1,280,360.49-454,033.36

Finding the Fourth Proportional to 853,450.64, 1,280,360.49 and 454,033.36

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Solution

The fourth proportional to 853,450.64, 1,280,360.49 and 454,033.36 is: 681,148.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,450.64 : 1,280,360.49 = 454,033.36 : x
  2. Step 2: Convert to fraction form
    853,450.64/1,280,360.49 = 454,033.36/x
  3. Step 3: Cross multiply
    853,450.64x = 1,280,360.49 × 454,033.36
  4. Step 4: Simplify right side
    853,450.64x = 581,326,373,015.78
  5. Step 5: Solve for x
    x = 581,326,373,015.78/853,450.64
  6. Step 6: Final answer
    x = 681,148.21

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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.