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Finding the Fourth Proportional to 453,669.80, 680,504.70 and 311,952.20

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Solution

The fourth proportional to 453,669.80, 680,504.70 and 311,952.20 is: 467,928.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,669.80 : 680,504.70 = 311,952.20 : x
  2. Step 2: Convert to fraction form
    453,669.80/680,504.70 = 311,952.20/x
  3. Step 3: Cross multiply
    453,669.80x = 680,504.70 × 311,952.20
  4. Step 4: Simplify right side
    453,669.80x = 212,284,938,275.34
  5. Step 5: Solve for x
    x = 212,284,938,275.34/453,669.80
  6. Step 6: Final answer
    x = 467,928.30

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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.