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Finding the Fourth Proportional to 522,823.70, 784,235.55 and 404,579.90

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Solution

The fourth proportional to 522,823.70, 784,235.55 and 404,579.90 is: 606,869.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,823.70 : 784,235.55 = 404,579.90 : x
  2. Step 2: Convert to fraction form
    522,823.70/784,235.55 = 404,579.90/x
  3. Step 3: Cross multiply
    522,823.70x = 784,235.55 × 404,579.90
  4. Step 4: Simplify right side
    522,823.70x = 317,285,940,395.45
  5. Step 5: Solve for x
    x = 317,285,940,395.45/522,823.70
  6. Step 6: Final answer
    x = 606,869.85

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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.