Home / 825,316.78-1,138,984.11-462,723.11

Finding the Fourth Proportional to 825,316.78, 1,138,984.11 and 462,723.11

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Solution

The fourth proportional to 825,316.78, 1,138,984.11 and 462,723.11 is: 638,584.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,316.78 : 1,138,984.11 = 462,723.11 : x
  2. Step 2: Convert to fraction form
    825,316.78/1,138,984.11 = 462,723.11/x
  3. Step 3: Cross multiply
    825,316.78x = 1,138,984.11 × 462,723.11
  4. Step 4: Simplify right side
    825,316.78x = 527,034,269,619.78
  5. Step 5: Solve for x
    x = 527,034,269,619.78/825,316.78
  6. Step 6: Final answer
    x = 638,584.22

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Double scale
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Similar ratio
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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.