Home / 638,064.24-880,489.04-351,568.32

Finding the Fourth Proportional to 638,064.24, 880,489.04 and 351,568.32

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Solution

The fourth proportional to 638,064.24, 880,489.04 and 351,568.32 is: 485,142.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,064.24 : 880,489.04 = 351,568.32 : x
  2. Step 2: Convert to fraction form
    638,064.24/880,489.04 = 351,568.32/x
  3. Step 3: Cross multiply
    638,064.24x = 880,489.04 × 351,568.32
  4. Step 4: Simplify right side
    638,064.24x = 309,552,052,571.21
  5. Step 5: Solve for x
    x = 309,552,052,571.21/638,064.24
  6. Step 6: Final answer
    x = 485,142.46

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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.