Home / 858,830.64-1,288,291.04-259,776.52

Finding the Fourth Proportional to 858,830.64, 1,288,291.04 and 259,776.52

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Solution

The fourth proportional to 858,830.64, 1,288,291.04 and 259,776.52 is: 389,678.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,830.64 : 1,288,291.04 = 259,776.52 : x
  2. Step 2: Convert to fraction form
    858,830.64/1,288,291.04 = 259,776.52/x
  3. Step 3: Cross multiply
    858,830.64x = 1,288,291.04 × 259,776.52
  4. Step 4: Simplify right side
    858,830.64x = 334,667,763,118.38
  5. Step 5: Solve for x
    x = 334,667,763,118.38/858,830.64
  6. Step 6: Final answer
    x = 389,678.42

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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.