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Finding the Fourth Proportional to 631,324.01, 870,969.20 and 466,147.85

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Solution

The fourth proportional to 631,324.01, 870,969.20 and 466,147.85 is: 643,093.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,324.01 : 870,969.20 = 466,147.85 : x
  2. Step 2: Convert to fraction form
    631,324.01/870,969.20 = 466,147.85/x
  3. Step 3: Cross multiply
    631,324.01x = 870,969.20 × 466,147.85
  4. Step 4: Simplify right side
    631,324.01x = 406,000,413,310.64
  5. Step 5: Solve for x
    x = 406,000,413,310.64/631,324.01
  6. Step 6: Final answer
    x = 643,093.57

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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.