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Finding the Fourth Proportional to 555,022.24, 765,930.64 and 300,373.48

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Solution

The fourth proportional to 555,022.24, 765,930.64 and 300,373.48 is: 414,515.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,022.24 : 765,930.64 = 300,373.48 : x
  2. Step 2: Convert to fraction form
    555,022.24/765,930.64 = 300,373.48/x
  3. Step 3: Cross multiply
    555,022.24x = 765,930.64 × 300,373.48
  4. Step 4: Simplify right side
    555,022.24x = 230,065,251,775.43
  5. Step 5: Solve for x
    x = 230,065,251,775.43/555,022.24
  6. Step 6: Final answer
    x = 414,515.37

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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.