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Finding the Fourth Proportional to 404,801.20, 607,590.60 and 205,346.80

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Solution

The fourth proportional to 404,801.20, 607,590.60 and 205,346.80 is: 308,217.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,801.20 : 607,590.60 = 205,346.80 : x
  2. Step 2: Convert to fraction form
    404,801.20/607,590.60 = 205,346.80/x
  3. Step 3: Cross multiply
    404,801.20x = 607,590.60 × 205,346.80
  4. Step 4: Simplify right side
    404,801.20x = 124,766,785,420.08
  5. Step 5: Solve for x
    x = 124,766,785,420.08/404,801.20
  6. Step 6: Final answer
    x = 308,217.43

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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.