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Finding the Fourth Proportional to 565,313.60, 847,703.10 and 328,728.80

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Solution

The fourth proportional to 565,313.60, 847,703.10 and 328,728.80 is: 492,937.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,313.60 : 847,703.10 = 328,728.80 : x
  2. Step 2: Convert to fraction form
    565,313.60/847,703.10 = 328,728.80/x
  3. Step 3: Cross multiply
    565,313.60x = 847,703.10 × 328,728.80
  4. Step 4: Simplify right side
    565,313.60x = 278,664,422,819.28
  5. Step 5: Solve for x
    x = 278,664,422,819.28/565,313.60
  6. Step 6: Final answer
    x = 492,937.77

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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.