Home / 695,429.80-1,043,144.70-410,828.20

Finding the Fourth Proportional to 695,429.80, 1,043,144.70 and 410,828.20

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Solution

The fourth proportional to 695,429.80, 1,043,144.70 and 410,828.20 is: 616,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,429.80 : 1,043,144.70 = 410,828.20 : x
  2. Step 2: Convert to fraction form
    695,429.80/1,043,144.70 = 410,828.20/x
  3. Step 3: Cross multiply
    695,429.80x = 1,043,144.70 × 410,828.20
  4. Step 4: Simplify right side
    695,429.80x = 428,553,259,440.54
  5. Step 5: Solve for x
    x = 428,553,259,440.54/695,429.80
  6. Step 6: Final answer
    x = 616,242.30

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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.