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Finding the Fourth Proportional to 606,003.40, 909,005.10 and 206,511.40

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Solution

The fourth proportional to 606,003.40, 909,005.10 and 206,511.40 is: 309,767.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,003.40 : 909,005.10 = 206,511.40 : x
  2. Step 2: Convert to fraction form
    606,003.40/909,005.10 = 206,511.40/x
  3. Step 3: Cross multiply
    606,003.40x = 909,005.10 × 206,511.40
  4. Step 4: Simplify right side
    606,003.40x = 187,719,915,808.14
  5. Step 5: Solve for x
    x = 187,719,915,808.14/606,003.40
  6. Step 6: Final answer
    x = 309,767.10

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Similar ratio
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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.