Home / 788,519.89-1,182,779.71-189,481.05

Finding the Fourth Proportional to 788,519.89, 1,182,779.71 and 189,481.05

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Solution

The fourth proportional to 788,519.89, 1,182,779.71 and 189,481.05 is: 284,221.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,519.89 : 1,182,779.71 = 189,481.05 : x
  2. Step 2: Convert to fraction form
    788,519.89/1,182,779.71 = 189,481.05/x
  3. Step 3: Cross multiply
    788,519.89x = 1,182,779.71 × 189,481.05
  4. Step 4: Simplify right side
    788,519.89x = 224,114,340,895.79
  5. Step 5: Solve for x
    x = 224,114,340,895.79/788,519.89
  6. Step 6: Final answer
    x = 284,221.55

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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.