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Finding the Fourth Proportional to 404,992.80, 607,343.40 and 205,246.80

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Solution

The fourth proportional to 404,992.80, 607,343.40 and 205,246.80 is: 307,796.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,992.80 : 607,343.40 = 205,246.80 : x
  2. Step 2: Convert to fraction form
    404,992.80/607,343.40 = 205,246.80/x
  3. Step 3: Cross multiply
    404,992.80x = 607,343.40 × 205,246.80
  4. Step 4: Simplify right side
    404,992.80x = 124,655,289,351.12
  5. Step 5: Solve for x
    x = 124,655,289,351.12/404,992.80
  6. Step 6: Final answer
    x = 307,796.31

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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.