Home / 788,556.70-1,182,187.05-339,622.30

Finding the Fourth Proportional to 788,556.70, 1,182,187.05 and 339,622.30

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Solution

The fourth proportional to 788,556.70, 1,182,187.05 and 339,622.30 is: 509,154.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,556.70 : 1,182,187.05 = 339,622.30 : x
  2. Step 2: Convert to fraction form
    788,556.70/1,182,187.05 = 339,622.30/x
  3. Step 3: Cross multiply
    788,556.70x = 1,182,187.05 × 339,622.30
  4. Step 4: Simplify right side
    788,556.70x = 401,497,084,951.22
  5. Step 5: Solve for x
    x = 401,497,084,951.22/788,556.70
  6. Step 6: Final answer
    x = 509,154.36

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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.