Home / 798,450.60-1,197,675.90-640,986.60

Finding the Fourth Proportional to 798,450.60, 1,197,675.90 and 640,986.60

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Solution

The fourth proportional to 798,450.60, 1,197,675.90 and 640,986.60 is: 961,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,450.60 : 1,197,675.90 = 640,986.60 : x
  2. Step 2: Convert to fraction form
    798,450.60/1,197,675.90 = 640,986.60/x
  3. Step 3: Cross multiply
    798,450.60x = 1,197,675.90 × 640,986.60
  4. Step 4: Simplify right side
    798,450.60x = 767,694,203,042.94
  5. Step 5: Solve for x
    x = 767,694,203,042.94/798,450.60
  6. Step 6: Final answer
    x = 961,479.90

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Double scale
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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.