Home / 626,422.24-864,464.94-339,942.16

Finding the Fourth Proportional to 626,422.24, 864,464.94 and 339,942.16

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Solution

The fourth proportional to 626,422.24, 864,464.94 and 339,942.16 is: 469,121.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,422.24 : 864,464.94 = 339,942.16 : x
  2. Step 2: Convert to fraction form
    626,422.24/864,464.94 = 339,942.16/x
  3. Step 3: Cross multiply
    626,422.24x = 864,464.94 × 339,942.16
  4. Step 4: Simplify right side
    626,422.24x = 293,868,078,947.87
  5. Step 5: Solve for x
    x = 293,868,078,947.87/626,422.24
  6. Step 6: Final answer
    x = 469,121.40

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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.