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Finding the Fourth Proportional to 578,896.60, 798,868.56 and 324,256.90

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Solution

The fourth proportional to 578,896.60, 798,868.56 and 324,256.90 is: 447,469.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,896.60 : 798,868.56 = 324,256.90 : x
  2. Step 2: Convert to fraction form
    578,896.60/798,868.56 = 324,256.90/x
  3. Step 3: Cross multiply
    578,896.60x = 798,868.56 × 324,256.90
  4. Step 4: Simplify right side
    578,896.60x = 259,038,642,773.06
  5. Step 5: Solve for x
    x = 259,038,642,773.06/578,896.60
  6. Step 6: Final answer
    x = 447,469.62

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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.