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Finding the Fourth Proportional to 621,801.48, 930,771.48 and 336,784.12

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Solution

The fourth proportional to 621,801.48, 930,771.48 and 336,784.12 is: 504,130.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,801.48 : 930,771.48 = 336,784.12 : x
  2. Step 2: Convert to fraction form
    621,801.48/930,771.48 = 336,784.12/x
  3. Step 3: Cross multiply
    621,801.48x = 930,771.48 × 336,784.12
  4. Step 4: Simplify right side
    621,801.48x = 313,469,053,812.90
  5. Step 5: Solve for x
    x = 313,469,053,812.90/621,801.48
  6. Step 6: Final answer
    x = 504,130.44

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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.