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Finding the Fourth Proportional to 485,852.40, 727,794.45 and 275,244.30

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Solution

The fourth proportional to 485,852.40, 727,794.45 and 275,244.30 is: 412,308.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,852.40 : 727,794.45 = 275,244.30 : x
  2. Step 2: Convert to fraction form
    485,852.40/727,794.45 = 275,244.30/x
  3. Step 3: Cross multiply
    485,852.40x = 727,794.45 × 275,244.30
  4. Step 4: Simplify right side
    485,852.40x = 200,321,273,934.14
  5. Step 5: Solve for x
    x = 200,321,273,934.14/485,852.40
  6. Step 6: Final answer
    x = 412,308.91

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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.