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Finding the Fourth Proportional to 522,904.20, 784,356.30 and 186,324.90

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Solution

The fourth proportional to 522,904.20, 784,356.30 and 186,324.90 is: 279,487.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,904.20 : 784,356.30 = 186,324.90 : x
  2. Step 2: Convert to fraction form
    522,904.20/784,356.30 = 186,324.90/x
  3. Step 3: Cross multiply
    522,904.20x = 784,356.30 × 186,324.90
  4. Step 4: Simplify right side
    522,904.20x = 146,145,109,161.87
  5. Step 5: Solve for x
    x = 146,145,109,161.87/522,904.20
  6. Step 6: Final answer
    x = 279,487.35

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Double scale
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Similar ratio
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1.5x scale

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.