Home / 638,468.10-957,216.15-323,151.30

Finding the Fourth Proportional to 638,468.10, 957,216.15 and 323,151.30

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Solution

The fourth proportional to 638,468.10, 957,216.15 and 323,151.30 is: 484,480.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,468.10 : 957,216.15 = 323,151.30 : x
  2. Step 2: Convert to fraction form
    638,468.10/957,216.15 = 323,151.30/x
  3. Step 3: Cross multiply
    638,468.10x = 957,216.15 × 323,151.30
  4. Step 4: Simplify right side
    638,468.10x = 309,325,643,253.50
  5. Step 5: Solve for x
    x = 309,325,643,253.50/638,468.10
  6. Step 6: Final answer
    x = 484,480.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.