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Finding the Fourth Proportional to 555,230.28, 766,220.22 and 300,581.46

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Solution

The fourth proportional to 555,230.28, 766,220.22 and 300,581.46 is: 414,803.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,230.28 : 766,220.22 = 300,581.46 : x
  2. Step 2: Convert to fraction form
    555,230.28/766,220.22 = 300,581.46/x
  3. Step 3: Cross multiply
    555,230.28x = 766,220.22 × 300,581.46
  4. Step 4: Simplify right side
    555,230.28x = 230,311,592,409.12
  5. Step 5: Solve for x
    x = 230,311,592,409.12/555,230.28
  6. Step 6: Final answer
    x = 414,803.73

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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.