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Finding the Fourth Proportional to 555,216.88, 766,199.55 and 300,568.07

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Solution

The fourth proportional to 555,216.88, 766,199.55 and 300,568.07 is: 414,784.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,216.88 : 766,199.55 = 300,568.07 : x
  2. Step 2: Convert to fraction form
    555,216.88/766,199.55 = 300,568.07/x
  3. Step 3: Cross multiply
    555,216.88x = 766,199.55 × 300,568.07
  4. Step 4: Simplify right side
    555,216.88x = 230,295,118,711.13
  5. Step 5: Solve for x
    x = 230,295,118,711.13/555,216.88
  6. Step 6: Final answer
    x = 414,784.07

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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.