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Finding the Fourth Proportional to 410,648.40, 615,972.60 and 335,998.80

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Solution

The fourth proportional to 410,648.40, 615,972.60 and 335,998.80 is: 503,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,648.40 : 615,972.60 = 335,998.80 : x
  2. Step 2: Convert to fraction form
    410,648.40/615,972.60 = 335,998.80/x
  3. Step 3: Cross multiply
    410,648.40x = 615,972.60 × 335,998.80
  4. Step 4: Simplify right side
    410,648.40x = 206,966,054,432.88
  5. Step 5: Solve for x
    x = 206,966,054,432.88/410,648.40
  6. Step 6: Final answer
    x = 503,998.20

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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.