Home / 750,571.38-1,035,786.87-406,407.65

Finding the Fourth Proportional to 750,571.38, 1,035,786.87 and 406,407.65

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Solution

The fourth proportional to 750,571.38, 1,035,786.87 and 406,407.65 is: 560,841.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,571.38 : 1,035,786.87 = 406,407.65 : x
  2. Step 2: Convert to fraction form
    750,571.38/1,035,786.87 = 406,407.65/x
  3. Step 3: Cross multiply
    750,571.38x = 1,035,786.87 × 406,407.65
  4. Step 4: Simplify right side
    750,571.38x = 420,951,702,558.62
  5. Step 5: Solve for x
    x = 420,951,702,558.62/750,571.38
  6. Step 6: Final answer
    x = 560,841.67

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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.