Home / 434,747.70-652,121.55-419,001.30

Finding the Fourth Proportional to 434,747.70, 652,121.55 and 419,001.30

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Solution

The fourth proportional to 434,747.70, 652,121.55 and 419,001.30 is: 628,501.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,747.70 : 652,121.55 = 419,001.30 : x
  2. Step 2: Convert to fraction form
    434,747.70/652,121.55 = 419,001.30/x
  3. Step 3: Cross multiply
    434,747.70x = 652,121.55 × 419,001.30
  4. Step 4: Simplify right side
    434,747.70x = 273,239,777,208.02
  5. Step 5: Solve for x
    x = 273,239,777,208.02/434,747.70
  6. Step 6: Final answer
    x = 628,501.95

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Similar ratio
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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.