Home / 453,829.10-680,962.35-320,422.10

Finding the Fourth Proportional to 453,829.10, 680,962.35 and 320,422.10

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Solution

The fourth proportional to 453,829.10, 680,962.35 and 320,422.10 is: 480,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,829.10 : 680,962.35 = 320,422.10 : x
  2. Step 2: Convert to fraction form
    453,829.10/680,962.35 = 320,422.10/x
  3. Step 3: Cross multiply
    453,829.10x = 680,962.35 × 320,422.10
  4. Step 4: Simplify right side
    453,829.10x = 218,195,386,207.94
  5. Step 5: Solve for x
    x = 218,195,386,207.94/453,829.10
  6. Step 6: Final answer
    x = 480,787.56

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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.