Home / 744,430.20-1,116,645.30-211,968.60

Finding the Fourth Proportional to 744,430.20, 1,116,645.30 and 211,968.60

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Solution

The fourth proportional to 744,430.20, 1,116,645.30 and 211,968.60 is: 317,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,430.20 : 1,116,645.30 = 211,968.60 : x
  2. Step 2: Convert to fraction form
    744,430.20/1,116,645.30 = 211,968.60/x
  3. Step 3: Cross multiply
    744,430.20x = 1,116,645.30 × 211,968.60
  4. Step 4: Simplify right side
    744,430.20x = 236,693,740,937.58
  5. Step 5: Solve for x
    x = 236,693,740,937.58/744,430.20
  6. Step 6: Final answer
    x = 317,952.90

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Half scale
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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.