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Finding the Fourth Proportional to 555,501.90, 766,608.39 and 313,794.66

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Solution

The fourth proportional to 555,501.90, 766,608.39 and 313,794.66 is: 433,045.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,501.90 : 766,608.39 = 313,794.66 : x
  2. Step 2: Convert to fraction form
    555,501.90/766,608.39 = 313,794.66/x
  3. Step 3: Cross multiply
    555,501.90x = 766,608.39 × 313,794.66
  4. Step 4: Simplify right side
    555,501.90x = 240,557,619,093.20
  5. Step 5: Solve for x
    x = 240,557,619,093.20/555,501.90
  6. Step 6: Final answer
    x = 433,045.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.