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Finding the Fourth Proportional to 555,412.95, 766,472.22 and 300,764.34

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Solution

The fourth proportional to 555,412.95, 766,472.22 and 300,764.34 is: 415,056.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,412.95 : 766,472.22 = 300,764.34 : x
  2. Step 2: Convert to fraction form
    555,412.95/766,472.22 = 300,764.34/x
  3. Step 3: Cross multiply
    555,412.95x = 766,472.22 × 300,764.34
  4. Step 4: Simplify right side
    555,412.95x = 230,527,511,376.64
  5. Step 5: Solve for x
    x = 230,527,511,376.64/555,412.95
  6. Step 6: Final answer
    x = 415,056.06

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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.