Home / 858,950.40-1,288,097.55-259,712.40

Finding the Fourth Proportional to 858,950.40, 1,288,097.55 and 259,712.40

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Solution

The fourth proportional to 858,950.40, 1,288,097.55 and 259,712.40 is: 389,469.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,950.40 : 1,288,097.55 = 259,712.40 : x
  2. Step 2: Convert to fraction form
    858,950.40/1,288,097.55 = 259,712.40/x
  3. Step 3: Cross multiply
    858,950.40x = 1,288,097.55 × 259,712.40
  4. Step 4: Simplify right side
    858,950.40x = 334,534,906,144.62
  5. Step 5: Solve for x
    x = 334,534,906,144.62/858,950.40
  6. Step 6: Final answer
    x = 389,469.41

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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.