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Finding the Fourth Proportional to 411,320.80, 616,981.20 and 367,775.20

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Solution

The fourth proportional to 411,320.80, 616,981.20 and 367,775.20 is: 551,662.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,320.80 : 616,981.20 = 367,775.20 : x
  2. Step 2: Convert to fraction form
    411,320.80/616,981.20 = 367,775.20/x
  3. Step 3: Cross multiply
    411,320.80x = 616,981.20 × 367,775.20
  4. Step 4: Simplify right side
    411,320.80x = 226,910,384,226.24
  5. Step 5: Solve for x
    x = 226,910,384,226.24/411,320.80
  6. Step 6: Final answer
    x = 551,662.80

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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.