Home / 878,462.12-1,212,269.25-491,273.25

Finding the Fourth Proportional to 878,462.12, 1,212,269.25 and 491,273.25

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Solution

The fourth proportional to 878,462.12, 1,212,269.25 and 491,273.25 is: 677,952.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,462.12 : 1,212,269.25 = 491,273.25 : x
  2. Step 2: Convert to fraction form
    878,462.12/1,212,269.25 = 491,273.25/x
  3. Step 3: Cross multiply
    878,462.12x = 1,212,269.25 × 491,273.25
  4. Step 4: Simplify right side
    878,462.12x = 595,555,445,804.85
  5. Step 5: Solve for x
    x = 595,555,445,804.85/878,462.12
  6. Step 6: Final answer
    x = 677,952.34

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.