Home / 788,285.20-1,182,427.80-189,246.36

Finding the Fourth Proportional to 788,285.20, 1,182,427.80 and 189,246.36

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Solution

The fourth proportional to 788,285.20, 1,182,427.80 and 189,246.36 is: 283,869.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,285.20 : 1,182,427.80 = 189,246.36 : x
  2. Step 2: Convert to fraction form
    788,285.20/1,182,427.80 = 189,246.36/x
  3. Step 3: Cross multiply
    788,285.20x = 1,182,427.80 × 189,246.36
  4. Step 4: Simplify right side
    788,285.20x = 223,770,157,112.81
  5. Step 5: Solve for x
    x = 223,770,157,112.81/788,285.20
  6. Step 6: Final answer
    x = 283,869.54

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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.