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Finding the Fourth Proportional to 554,399.32, 764,740.74 and 350,089.78

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Solution

The fourth proportional to 554,399.32, 764,740.74 and 350,089.78 is: 482,915.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,399.32 : 764,740.74 = 350,089.78 : x
  2. Step 2: Convert to fraction form
    554,399.32/764,740.74 = 350,089.78/x
  3. Step 3: Cross multiply
    554,399.32x = 764,740.74 × 350,089.78
  4. Step 4: Simplify right side
    554,399.32x = 267,727,917,423.64
  5. Step 5: Solve for x
    x = 267,727,917,423.64/554,399.32
  6. Step 6: Final answer
    x = 482,915.31

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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.