Home / 788,808.20-1,183,212.30-490,209.80

Finding the Fourth Proportional to 788,808.20, 1,183,212.30 and 490,209.80

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Solution

The fourth proportional to 788,808.20, 1,183,212.30 and 490,209.80 is: 735,314.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,808.20 : 1,183,212.30 = 490,209.80 : x
  2. Step 2: Convert to fraction form
    788,808.20/1,183,212.30 = 490,209.80/x
  3. Step 3: Cross multiply
    788,808.20x = 1,183,212.30 × 490,209.80
  4. Step 4: Simplify right side
    788,808.20x = 580,022,264,940.54
  5. Step 5: Solve for x
    x = 580,022,264,940.54/788,808.20
  6. Step 6: Final answer
    x = 735,314.70

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Double scale
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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.