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Finding the Fourth Proportional to 404,714.20, 607,460.10 and 205,259.80

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Solution

The fourth proportional to 404,714.20, 607,460.10 and 205,259.80 is: 308,086.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,714.20 : 607,460.10 = 205,259.80 : x
  2. Step 2: Convert to fraction form
    404,714.20/607,460.10 = 205,259.80/x
  3. Step 3: Cross multiply
    404,714.20x = 607,460.10 × 205,259.80
  4. Step 4: Simplify right side
    404,714.20x = 124,687,138,633.98
  5. Step 5: Solve for x
    x = 124,687,138,633.98/404,714.20
  6. Step 6: Final answer
    x = 308,086.89

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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.