Home / 627,497.09-865,912.85-355,568.25

Finding the Fourth Proportional to 627,497.09, 865,912.85 and 355,568.25

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Solution

The fourth proportional to 627,497.09, 865,912.85 and 355,568.25 is: 490,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,497.09 : 865,912.85 = 355,568.25 : x
  2. Step 2: Convert to fraction form
    627,497.09/865,912.85 = 355,568.25/x
  3. Step 3: Cross multiply
    627,497.09x = 865,912.85 × 355,568.25
  4. Step 4: Simplify right side
    627,497.09x = 307,891,114,658.97
  5. Step 5: Solve for x
    x = 307,891,114,658.97/627,497.09
  6. Step 6: Final answer
    x = 490,665.40

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1.5x scale

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.