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Finding the Fourth Proportional to 523,328.80, 784,993.20 and 344,869.60

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Solution

The fourth proportional to 523,328.80, 784,993.20 and 344,869.60 is: 517,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,328.80 : 784,993.20 = 344,869.60 : x
  2. Step 2: Convert to fraction form
    523,328.80/784,993.20 = 344,869.60/x
  3. Step 3: Cross multiply
    523,328.80x = 784,993.20 × 344,869.60
  4. Step 4: Simplify right side
    523,328.80x = 270,720,290,886.72
  5. Step 5: Solve for x
    x = 270,720,290,886.72/523,328.80
  6. Step 6: Final answer
    x = 517,304.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.