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Finding the Fourth Proportional to 540,682.96, 746,121.36 and 322,928.56

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Solution

The fourth proportional to 540,682.96, 746,121.36 and 322,928.56 is: 445,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,682.96 : 746,121.36 = 322,928.56 : x
  2. Step 2: Convert to fraction form
    540,682.96/746,121.36 = 322,928.56/x
  3. Step 3: Cross multiply
    540,682.96x = 746,121.36 × 322,928.56
  4. Step 4: Simplify right side
    540,682.96x = 240,943,896,370.04
  5. Step 5: Solve for x
    x = 240,943,896,370.04/540,682.96
  6. Step 6: Final answer
    x = 445,628.80

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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.