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Finding the Fourth Proportional to 555,225.32, 766,212.66 and 300,575.90

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Solution

The fourth proportional to 555,225.32, 766,212.66 and 300,575.90 is: 414,795.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,225.32 : 766,212.66 = 300,575.90 : x
  2. Step 2: Convert to fraction form
    555,225.32/766,212.66 = 300,575.90/x
  3. Step 3: Cross multiply
    555,225.32x = 766,212.66 × 300,575.90
  4. Step 4: Simplify right side
    555,225.32x = 230,305,059,870.89
  5. Step 5: Solve for x
    x = 230,305,059,870.89/555,225.32
  6. Step 6: Final answer
    x = 414,795.67

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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.