Home / 788,686.60-1,183,029.90-220,066.60

Finding the Fourth Proportional to 788,686.60, 1,183,029.90 and 220,066.60

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Solution

The fourth proportional to 788,686.60, 1,183,029.90 and 220,066.60 is: 330,099.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,686.60 : 1,183,029.90 = 220,066.60 : x
  2. Step 2: Convert to fraction form
    788,686.60/1,183,029.90 = 220,066.60/x
  3. Step 3: Cross multiply
    788,686.60x = 1,183,029.90 × 220,066.60
  4. Step 4: Simplify right side
    788,686.60x = 260,345,367,791.34
  5. Step 5: Solve for x
    x = 260,345,367,791.34/788,686.60
  6. Step 6: Final answer
    x = 330,099.90

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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.