Home / 807,154-1,207,741.68-505,229.20

Finding the Fourth Proportional to 807,154, 1,207,741.68 and 505,229.20

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Solution

The fourth proportional to 807,154, 1,207,741.68 and 505,229.20 is: 755,972.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,154 : 1,207,741.68 = 505,229.20 : x
  2. Step 2: Convert to fraction form
    807,154/1,207,741.68 = 505,229.20/x
  3. Step 3: Cross multiply
    807,154x = 1,207,741.68 × 505,229.20
  4. Step 4: Simplify right side
    807,154x = 610,186,362,793.06
  5. Step 5: Solve for x
    x = 610,186,362,793.06/807,154
  6. Step 6: Final answer
    x = 755,972.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.