Home / 555,460.20-766,531.26-300,805.56

Finding the Fourth Proportional to 555,460.20, 766,531.26 and 300,805.56

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Solution

The fourth proportional to 555,460.20, 766,531.26 and 300,805.56 is: 415,109.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,460.20 : 766,531.26 = 300,805.56 : x
  2. Step 2: Convert to fraction form
    555,460.20/766,531.26 = 300,805.56/x
  3. Step 3: Cross multiply
    555,460.20x = 766,531.26 × 300,805.56
  4. Step 4: Simplify right side
    555,460.20x = 230,576,864,921.81
  5. Step 5: Solve for x
    x = 230,576,864,921.81/555,460.20
  6. Step 6: Final answer
    x = 415,109.61

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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.