Home / 766,556.48-1,149,905.79-260,947.59

Finding the Fourth Proportional to 766,556.48, 1,149,905.79 and 260,947.59

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Solution

The fourth proportional to 766,556.48, 1,149,905.79 and 260,947.59 is: 391,445.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,556.48 : 1,149,905.79 = 260,947.59 : x
  2. Step 2: Convert to fraction form
    766,556.48/1,149,905.79 = 260,947.59/x
  3. Step 3: Cross multiply
    766,556.48x = 1,149,905.79 × 260,947.59
  4. Step 4: Simplify right side
    766,556.48x = 300,065,144,627.55
  5. Step 5: Solve for x
    x = 300,065,144,627.55/766,556.48
  6. Step 6: Final answer
    x = 391,445.58

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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.