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Finding the Fourth Proportional to 338,998.40, 508,627.20 and 333,684.80

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Solution

The fourth proportional to 338,998.40, 508,627.20 and 333,684.80 is: 500,654.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,998.40 : 508,627.20 = 333,684.80 : x
  2. Step 2: Convert to fraction form
    338,998.40/508,627.20 = 333,684.80/x
  3. Step 3: Cross multiply
    338,998.40x = 508,627.20 × 333,684.80
  4. Step 4: Simplify right side
    338,998.40x = 169,721,165,506.56
  5. Step 5: Solve for x
    x = 169,721,165,506.56/338,998.40
  6. Step 6: Final answer
    x = 500,654.77

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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.