Home / 858,012.60-1,286,630.10-325,356.60

Finding the Fourth Proportional to 858,012.60, 1,286,630.10 and 325,356.60

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Solution

The fourth proportional to 858,012.60, 1,286,630.10 and 325,356.60 is: 487,887.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,012.60 : 1,286,630.10 = 325,356.60 : x
  2. Step 2: Convert to fraction form
    858,012.60/1,286,630.10 = 325,356.60/x
  3. Step 3: Cross multiply
    858,012.60x = 1,286,630.10 × 325,356.60
  4. Step 4: Simplify right side
    858,012.60x = 418,613,594,793.66
  5. Step 5: Solve for x
    x = 418,613,594,793.66/858,012.60
  6. Step 6: Final answer
    x = 487,887.47

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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.