Home / 678,169.60-1,017,254.40-204,805.60

Finding the Fourth Proportional to 678,169.60, 1,017,254.40 and 204,805.60

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Solution

The fourth proportional to 678,169.60, 1,017,254.40 and 204,805.60 is: 307,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,169.60 : 1,017,254.40 = 204,805.60 : x
  2. Step 2: Convert to fraction form
    678,169.60/1,017,254.40 = 204,805.60/x
  3. Step 3: Cross multiply
    678,169.60x = 1,017,254.40 × 204,805.60
  4. Step 4: Simplify right side
    678,169.60x = 208,339,397,744.64
  5. Step 5: Solve for x
    x = 208,339,397,744.64/678,169.60
  6. Step 6: Final answer
    x = 307,208.40

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Similar ratio
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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.