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Finding the Fourth Proportional to 555,210.36, 766,191.96 and 300,560.94

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Solution

The fourth proportional to 555,210.36, 766,191.96 and 300,560.94 is: 414,775.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,210.36 : 766,191.96 = 300,560.94 : x
  2. Step 2: Convert to fraction form
    555,210.36/766,191.96 = 300,560.94/x
  3. Step 3: Cross multiply
    555,210.36x = 766,191.96 × 300,560.94
  4. Step 4: Simplify right side
    555,210.36x = 230,287,375,718.04
  5. Step 5: Solve for x
    x = 230,287,375,718.04/555,210.36
  6. Step 6: Final answer
    x = 414,775.00

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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.