Home / 638,122.87-880,598.22-347,736.97

Finding the Fourth Proportional to 638,122.87, 880,598.22 and 347,736.97

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Solution

The fourth proportional to 638,122.87, 880,598.22 and 347,736.97 is: 479,870.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,122.87 : 880,598.22 = 347,736.97 : x
  2. Step 2: Convert to fraction form
    638,122.87/880,598.22 = 347,736.97/x
  3. Step 3: Cross multiply
    638,122.87x = 880,598.22 × 347,736.97
  4. Step 4: Simplify right side
    638,122.87x = 306,216,552,407.20
  5. Step 5: Solve for x
    x = 306,216,552,407.20/638,122.87
  6. Step 6: Final answer
    x = 479,870.84

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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.