Home / 638,091.46-880,584.74-351,630.01

Finding the Fourth Proportional to 638,091.46, 880,584.74 and 351,630.01

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Solution

The fourth proportional to 638,091.46, 880,584.74 and 351,630.01 is: 485,259.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,091.46 : 880,584.74 = 351,630.01 : x
  2. Step 2: Convert to fraction form
    638,091.46/880,584.74 = 351,630.01/x
  3. Step 3: Cross multiply
    638,091.46x = 880,584.74 × 351,630.01
  4. Step 4: Simplify right side
    638,091.46x = 309,640,020,932.05
  5. Step 5: Solve for x
    x = 309,640,020,932.05/638,091.46
  6. Step 6: Final answer
    x = 485,259.62

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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.