Home / 858,005.10-1,286,618.85-325,349.10

Finding the Fourth Proportional to 858,005.10, 1,286,618.85 and 325,349.10

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Solution

The fourth proportional to 858,005.10, 1,286,618.85 and 325,349.10 is: 487,876.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,005.10 : 1,286,618.85 = 325,349.10 : x
  2. Step 2: Convert to fraction form
    858,005.10/1,286,618.85 = 325,349.10/x
  3. Step 3: Cross multiply
    858,005.10x = 1,286,618.85 × 325,349.10
  4. Step 4: Simplify right side
    858,005.10x = 418,600,284,890.54
  5. Step 5: Solve for x
    x = 418,600,284,890.54/858,005.10
  6. Step 6: Final answer
    x = 487,876.22

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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.