Home / 638,084.69-880,575.68-351,623.24

Finding the Fourth Proportional to 638,084.69, 880,575.68 and 351,623.24

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Solution

The fourth proportional to 638,084.69, 880,575.68 and 351,623.24 is: 485,250.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,084.69 : 880,575.68 = 351,623.24 : x
  2. Step 2: Convert to fraction form
    638,084.69/880,575.68 = 351,623.24/x
  3. Step 3: Cross multiply
    638,084.69x = 880,575.68 × 351,623.24
  4. Step 4: Simplify right side
    638,084.69x = 309,630,867,505.81
  5. Step 5: Solve for x
    x = 309,630,867,505.81/638,084.69
  6. Step 6: Final answer
    x = 485,250.42

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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.