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Finding the Fourth Proportional to 555,619.62, 766,754.31 and 300,971.82

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Solution

The fourth proportional to 555,619.62, 766,754.31 and 300,971.82 is: 415,340.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,619.62 : 766,754.31 = 300,971.82 : x
  2. Step 2: Convert to fraction form
    555,619.62/766,754.31 = 300,971.82/x
  3. Step 3: Cross multiply
    555,619.62x = 766,754.31 × 300,971.82
  4. Step 4: Simplify right side
    555,619.62x = 230,771,440,173.54
  5. Step 5: Solve for x
    x = 230,771,440,173.54/555,619.62
  6. Step 6: Final answer
    x = 415,340.70

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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.