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Finding the Fourth Proportional to 404,487.26, 606,730.90 and 108,999.26

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Solution

The fourth proportional to 404,487.26, 606,730.90 and 108,999.26 is: 163,498.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,487.26 : 606,730.90 = 108,999.26 : x
  2. Step 2: Convert to fraction form
    404,487.26/606,730.90 = 108,999.26/x
  3. Step 3: Cross multiply
    404,487.26x = 606,730.90 × 108,999.26
  4. Step 4: Simplify right side
    404,487.26x = 66,133,219,119.13
  5. Step 5: Solve for x
    x = 66,133,219,119.13/404,487.26
  6. Step 6: Final answer
    x = 163,498.89

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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.