Home / 1,377,212.70-2,065,819.05-838,335.90

Finding the Fourth Proportional to 1,377,212.70, 2,065,819.05 and 838,335.90

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Solution

The fourth proportional to 1,377,212.70, 2,065,819.05 and 838,335.90 is: 1,257,503.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,212.70 : 2,065,819.05 = 838,335.90 : x
  2. Step 2: Convert to fraction form
    1,377,212.70/2,065,819.05 = 838,335.90/x
  3. Step 3: Cross multiply
    1,377,212.70x = 2,065,819.05 × 838,335.90
  4. Step 4: Simplify right side
    1,377,212.70x = 1,731,850,272,518.90
  5. Step 5: Solve for x
    x = 1,731,850,272,518.90/1,377,212.70
  6. Step 6: Final answer
    x = 1,257,503.85

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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.