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Finding the Fourth Proportional to 404,701.20, 607,440.60 and 205,246.80

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Solution

The fourth proportional to 404,701.20, 607,440.60 and 205,246.80 is: 308,067.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,701.20 : 607,440.60 = 205,246.80 : x
  2. Step 2: Convert to fraction form
    404,701.20/607,440.60 = 205,246.80/x
  3. Step 3: Cross multiply
    404,701.20x = 607,440.60 × 205,246.80
  4. Step 4: Simplify right side
    404,701.20x = 124,675,239,340.08
  5. Step 5: Solve for x
    x = 124,675,239,340.08/404,701.20
  6. Step 6: Final answer
    x = 308,067.38

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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.