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Finding the Fourth Proportional to 554,160.72, 764,231.47 and 349,856.64

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Solution

The fourth proportional to 554,160.72, 764,231.47 and 349,856.64 is: 482,479.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,160.72 : 764,231.47 = 349,856.64 : x
  2. Step 2: Convert to fraction form
    554,160.72/764,231.47 = 349,856.64/x
  3. Step 3: Cross multiply
    554,160.72x = 764,231.47 × 349,856.64
  4. Step 4: Simplify right side
    554,160.72x = 267,371,454,276.46
  5. Step 5: Solve for x
    x = 267,371,454,276.46/554,160.72
  6. Step 6: Final answer
    x = 482,479.98

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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.