Home / 644,885.30-966,982.35-270,485.30

Finding the Fourth Proportional to 644,885.30, 966,982.35 and 270,485.30

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Solution

The fourth proportional to 644,885.30, 966,982.35 and 270,485.30 is: 405,582.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,885.30 : 966,982.35 = 270,485.30 : x
  2. Step 2: Convert to fraction form
    644,885.30/966,982.35 = 270,485.30/x
  3. Step 3: Cross multiply
    644,885.30x = 966,982.35 × 270,485.30
  4. Step 4: Simplify right side
    644,885.30x = 261,554,511,034.46
  5. Step 5: Solve for x
    x = 261,554,511,034.46/644,885.30
  6. Step 6: Final answer
    x = 405,582.99

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Double scale
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1.5x scale

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.