Home / 670,144.30-1,005,214.47-270,780.46

Finding the Fourth Proportional to 670,144.30, 1,005,214.47 and 270,780.46

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Solution

The fourth proportional to 670,144.30, 1,005,214.47 and 270,780.46 is: 406,169.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,144.30 : 1,005,214.47 = 270,780.46 : x
  2. Step 2: Convert to fraction form
    670,144.30/1,005,214.47 = 270,780.46/x
  3. Step 3: Cross multiply
    670,144.30x = 1,005,214.47 × 270,780.46
  4. Step 4: Simplify right side
    670,144.30x = 272,192,436,585.26
  5. Step 5: Solve for x
    x = 272,192,436,585.26/670,144.30
  6. Step 6: Final answer
    x = 406,169.89

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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.