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Finding the Fourth Proportional to 404,030.80, 606,702.30 and 271,498.60

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Solution

The fourth proportional to 404,030.80, 606,702.30 and 271,498.60 is: 407,688.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,030.80 : 606,702.30 = 271,498.60 : x
  2. Step 2: Convert to fraction form
    404,030.80/606,702.30 = 271,498.60/x
  3. Step 3: Cross multiply
    404,030.80x = 606,702.30 × 271,498.60
  4. Step 4: Simplify right side
    404,030.80x = 164,718,825,066.78
  5. Step 5: Solve for x
    x = 164,718,825,066.78/404,030.80
  6. Step 6: Final answer
    x = 407,688.78

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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.