Home / 788,579.70-1,182,221.55-339,645.30

Finding the Fourth Proportional to 788,579.70, 1,182,221.55 and 339,645.30

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Solution

The fourth proportional to 788,579.70, 1,182,221.55 and 339,645.30 is: 509,188.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,579.70 : 1,182,221.55 = 339,645.30 : x
  2. Step 2: Convert to fraction form
    788,579.70/1,182,221.55 = 339,645.30/x
  3. Step 3: Cross multiply
    788,579.70x = 1,182,221.55 × 339,645.30
  4. Step 4: Simplify right side
    788,579.70x = 401,535,993,016.22
  5. Step 5: Solve for x
    x = 401,535,993,016.22/788,579.70
  6. Step 6: Final answer
    x = 509,188.85

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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.