Home / 769,330.81-1,061,620.89-425,162.62

Finding the Fourth Proportional to 769,330.81, 1,061,620.89 and 425,162.62

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Solution

The fourth proportional to 769,330.81, 1,061,620.89 and 425,162.62 is: 586,693.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,330.81 : 1,061,620.89 = 425,162.62 : x
  2. Step 2: Convert to fraction form
    769,330.81/1,061,620.89 = 425,162.62/x
  3. Step 3: Cross multiply
    769,330.81x = 1,061,620.89 × 425,162.62
  4. Step 4: Simplify right side
    769,330.81x = 451,361,519,039.13
  5. Step 5: Solve for x
    x = 451,361,519,039.13/769,330.81
  6. Step 6: Final answer
    x = 586,693.67

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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.