Home / 858,332.84-1,286,997.34-259,114.28

Finding the Fourth Proportional to 858,332.84, 1,286,997.34 and 259,114.28

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Solution

The fourth proportional to 858,332.84, 1,286,997.34 and 259,114.28 is: 388,519.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,332.84 : 1,286,997.34 = 259,114.28 : x
  2. Step 2: Convert to fraction form
    858,332.84/1,286,997.34 = 259,114.28/x
  3. Step 3: Cross multiply
    858,332.84x = 1,286,997.34 × 259,114.28
  4. Step 4: Simplify right side
    858,332.84x = 333,479,389,116.02
  5. Step 5: Solve for x
    x = 333,479,389,116.02/858,332.84
  6. Step 6: Final answer
    x = 388,519.90

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Double scale
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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.