Home / 715,606.58-1,073,409.87-266,315.78

Finding the Fourth Proportional to 715,606.58, 1,073,409.87 and 266,315.78

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Solution

The fourth proportional to 715,606.58, 1,073,409.87 and 266,315.78 is: 399,473.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,606.58 : 1,073,409.87 = 266,315.78 : x
  2. Step 2: Convert to fraction form
    715,606.58/1,073,409.87 = 266,315.78/x
  3. Step 3: Cross multiply
    715,606.58x = 1,073,409.87 × 266,315.78
  4. Step 4: Simplify right side
    715,606.58x = 285,865,981,421.70
  5. Step 5: Solve for x
    x = 285,865,981,421.70/715,606.58
  6. Step 6: Final answer
    x = 399,473.67

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Double scale
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Similar ratio
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1.5x scale

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.