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Finding the Fourth Proportional to 404,637.80, 607,612.80 and 272,105.60

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Solution

The fourth proportional to 404,637.80, 607,612.80 and 272,105.60 is: 408,599.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,637.80 : 607,612.80 = 272,105.60 : x
  2. Step 2: Convert to fraction form
    404,637.80/607,612.80 = 272,105.60/x
  3. Step 3: Cross multiply
    404,637.80x = 607,612.80 × 272,105.60
  4. Step 4: Simplify right side
    404,637.80x = 165,334,845,511.68
  5. Step 5: Solve for x
    x = 165,334,845,511.68/404,637.80
  6. Step 6: Final answer
    x = 408,599.61

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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.