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Finding the Fourth Proportional to 554,278.17, 764,393.85 and 349,975.92

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Solution

The fourth proportional to 554,278.17, 764,393.85 and 349,975.92 is: 482,644.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,278.17 : 764,393.85 = 349,975.92 : x
  2. Step 2: Convert to fraction form
    554,278.17/764,393.85 = 349,975.92/x
  3. Step 3: Cross multiply
    554,278.17x = 764,393.85 × 349,975.92
  4. Step 4: Simplify right side
    554,278.17x = 267,519,440,896.09
  5. Step 5: Solve for x
    x = 267,519,440,896.09/554,278.17
  6. Step 6: Final answer
    x = 482,644.74

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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.