Home / 788,830.80-1,183,246.20-389,662.80

Finding the Fourth Proportional to 788,830.80, 1,183,246.20 and 389,662.80

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Solution

The fourth proportional to 788,830.80, 1,183,246.20 and 389,662.80 is: 584,494.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,830.80 : 1,183,246.20 = 389,662.80 : x
  2. Step 2: Convert to fraction form
    788,830.80/1,183,246.20 = 389,662.80/x
  3. Step 3: Cross multiply
    788,830.80x = 1,183,246.20 × 389,662.80
  4. Step 4: Simplify right side
    788,830.80x = 461,067,027,381.36
  5. Step 5: Solve for x
    x = 461,067,027,381.36/788,830.80
  6. Step 6: Final answer
    x = 584,494.20

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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.