Home / 788,893.60-1,183,340.40-290,192.80

Finding the Fourth Proportional to 788,893.60, 1,183,340.40 and 290,192.80

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Solution

The fourth proportional to 788,893.60, 1,183,340.40 and 290,192.80 is: 435,289.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,893.60 : 1,183,340.40 = 290,192.80 : x
  2. Step 2: Convert to fraction form
    788,893.60/1,183,340.40 = 290,192.80/x
  3. Step 3: Cross multiply
    788,893.60x = 1,183,340.40 × 290,192.80
  4. Step 4: Simplify right side
    788,893.60x = 343,396,864,029.12
  5. Step 5: Solve for x
    x = 343,396,864,029.12/788,893.60
  6. Step 6: Final answer
    x = 435,289.20

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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.