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Finding the Fourth Proportional to 404,805.72, 607,579.02 and 205,263.84

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Solution

The fourth proportional to 404,805.72, 607,579.02 and 205,263.84 is: 308,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,805.72 : 607,579.02 = 205,263.84 : x
  2. Step 2: Convert to fraction form
    404,805.72/607,579.02 = 205,263.84/x
  3. Step 3: Cross multiply
    404,805.72x = 607,579.02 × 205,263.84
  4. Step 4: Simplify right side
    404,805.72x = 124,714,002,748.64
  5. Step 5: Solve for x
    x = 124,714,002,748.64/404,805.72
  6. Step 6: Final answer
    x = 308,083.60

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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.