Home / 555,497.20-766,582.32-300,842.56

Finding the Fourth Proportional to 555,497.20, 766,582.32 and 300,842.56

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Solution

The fourth proportional to 555,497.20, 766,582.32 and 300,842.56 is: 415,160.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,497.20 : 766,582.32 = 300,842.56 : x
  2. Step 2: Convert to fraction form
    555,497.20/766,582.32 = 300,842.56/x
  3. Step 3: Cross multiply
    555,497.20x = 766,582.32 × 300,842.56
  4. Step 4: Simplify right side
    555,497.20x = 230,620,587,599.54
  5. Step 5: Solve for x
    x = 230,620,587,599.54/555,497.20
  6. Step 6: Final answer
    x = 415,160.67

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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.