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Finding the Fourth Proportional to 555,211.22, 766,193.94 and 300,562.40

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Solution

The fourth proportional to 555,211.22, 766,193.94 and 300,562.40 is: 414,777.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,211.22 : 766,193.94 = 300,562.40 : x
  2. Step 2: Convert to fraction form
    555,211.22/766,193.94 = 300,562.40/x
  3. Step 3: Cross multiply
    555,211.22x = 766,193.94 × 300,562.40
  4. Step 4: Simplify right side
    555,211.22x = 230,289,089,471.86
  5. Step 5: Solve for x
    x = 230,289,089,471.86/555,211.22
  6. Step 6: Final answer
    x = 414,777.44

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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.