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Finding the Fourth Proportional to 522,038.30, 784,727.85 and 485,059.10

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Solution

The fourth proportional to 522,038.30, 784,727.85 and 485,059.10 is: 729,140.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,038.30 : 784,727.85 = 485,059.10 : x
  2. Step 2: Convert to fraction form
    522,038.30/784,727.85 = 485,059.10/x
  3. Step 3: Cross multiply
    522,038.30x = 784,727.85 × 485,059.10
  4. Step 4: Simplify right side
    522,038.30x = 380,639,384,665.94
  5. Step 5: Solve for x
    x = 380,639,384,665.94/522,038.30
  6. Step 6: Final answer
    x = 729,140.73

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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.