Home / 638,452.33-881,071.01-351,982.68

Finding the Fourth Proportional to 638,452.33, 881,071.01 and 351,982.68

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Solution

The fourth proportional to 638,452.33, 881,071.01 and 351,982.68 is: 485,739.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,452.33 : 881,071.01 = 351,982.68 : x
  2. Step 2: Convert to fraction form
    638,452.33/881,071.01 = 351,982.68/x
  3. Step 3: Cross multiply
    638,452.33x = 881,071.01 × 351,982.68
  4. Step 4: Simplify right side
    638,452.33x = 310,121,729,204.84
  5. Step 5: Solve for x
    x = 310,121,729,204.84/638,452.33
  6. Step 6: Final answer
    x = 485,739.83

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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.