Home / 858,770.91-1,286,194.43-409,807.14

Finding the Fourth Proportional to 858,770.91, 1,286,194.43 and 409,807.14

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Solution

The fourth proportional to 858,770.91, 1,286,194.43 and 409,807.14 is: 613,774.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,770.91 : 1,286,194.43 = 409,807.14 : x
  2. Step 2: Convert to fraction form
    858,770.91/1,286,194.43 = 409,807.14/x
  3. Step 3: Cross multiply
    858,770.91x = 1,286,194.43 × 409,807.14
  4. Step 4: Simplify right side
    858,770.91x = 527,091,658,793.20
  5. Step 5: Solve for x
    x = 527,091,658,793.20/858,770.91
  6. Step 6: Final answer
    x = 613,774.47

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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.