Home / 768,908.80-1,153,275.66-207,899.56

Finding the Fourth Proportional to 768,908.80, 1,153,275.66 and 207,899.56

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Solution

The fourth proportional to 768,908.80, 1,153,275.66 and 207,899.56 is: 311,825.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,908.80 : 1,153,275.66 = 207,899.56 : x
  2. Step 2: Convert to fraction form
    768,908.80/1,153,275.66 = 207,899.56/x
  3. Step 3: Cross multiply
    768,908.80x = 1,153,275.66 × 207,899.56
  4. Step 4: Simplify right side
    768,908.80x = 239,765,502,272.71
  5. Step 5: Solve for x
    x = 239,765,502,272.71/768,908.80
  6. Step 6: Final answer
    x = 311,825.67

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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.