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Finding the Fourth Proportional to 453,668.30, 680,502.45 and 311,950.70

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Solution

The fourth proportional to 453,668.30, 680,502.45 and 311,950.70 is: 467,926.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,668.30 : 680,502.45 = 311,950.70 : x
  2. Step 2: Convert to fraction form
    453,668.30/680,502.45 = 311,950.70/x
  3. Step 3: Cross multiply
    453,668.30x = 680,502.45 × 311,950.70
  4. Step 4: Simplify right side
    453,668.30x = 212,283,215,629.22
  5. Step 5: Solve for x
    x = 212,283,215,629.22/453,668.30
  6. Step 6: Final answer
    x = 467,926.05

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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.