Home / 853,205.57-1,280,018.85-254,164.40

Finding the Fourth Proportional to 853,205.57, 1,280,018.85 and 254,164.40

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Solution

The fourth proportional to 853,205.57, 1,280,018.85 and 254,164.40 is: 381,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,205.57 : 1,280,018.85 = 254,164.40 : x
  2. Step 2: Convert to fraction form
    853,205.57/1,280,018.85 = 254,164.40/x
  3. Step 3: Cross multiply
    853,205.57x = 1,280,018.85 × 254,164.40
  4. Step 4: Simplify right side
    853,205.57x = 325,335,215,328.02
  5. Step 5: Solve for x
    x = 325,335,215,328.02/853,205.57
  6. Step 6: Final answer
    x = 381,309.30

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1.5x scale

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.