Home / 788,768.10-1,183,152.15-290,067.30

Finding the Fourth Proportional to 788,768.10, 1,183,152.15 and 290,067.30

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Solution

The fourth proportional to 788,768.10, 1,183,152.15 and 290,067.30 is: 435,100.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,768.10 : 1,183,152.15 = 290,067.30 : x
  2. Step 2: Convert to fraction form
    788,768.10/1,183,152.15 = 290,067.30/x
  3. Step 3: Cross multiply
    788,768.10x = 1,183,152.15 × 290,067.30
  4. Step 4: Simplify right side
    788,768.10x = 343,193,749,639.70
  5. Step 5: Solve for x
    x = 343,193,749,639.70/788,768.10
  6. Step 6: Final answer
    x = 435,100.95

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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.