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Finding the Fourth Proportional to 638,255.71, 880,798.22 and 351,776.53

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Solution

The fourth proportional to 638,255.71, 880,798.22 and 351,776.53 is: 485,454.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,255.71 : 880,798.22 = 351,776.53 : x
  2. Step 2: Convert to fraction form
    638,255.71/880,798.22 = 351,776.53/x
  3. Step 3: Cross multiply
    638,255.71x = 880,798.22 × 351,776.53
  4. Step 4: Simplify right side
    638,255.71x = 309,844,138,378.64
  5. Step 5: Solve for x
    x = 309,844,138,378.64/638,255.71
  6. Step 6: Final answer
    x = 485,454.55

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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.