Home / 1,377,267.70-2,065,901.55-838,390.90

Finding the Fourth Proportional to 1,377,267.70, 2,065,901.55 and 838,390.90

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Solution

The fourth proportional to 1,377,267.70, 2,065,901.55 and 838,390.90 is: 1,257,586.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,267.70 : 2,065,901.55 = 838,390.90 : x
  2. Step 2: Convert to fraction form
    1,377,267.70/2,065,901.55 = 838,390.90/x
  3. Step 3: Cross multiply
    1,377,267.70x = 2,065,901.55 × 838,390.90
  4. Step 4: Simplify right side
    1,377,267.70x = 1,732,033,059,815.90
  5. Step 5: Solve for x
    x = 1,732,033,059,815.90/1,377,267.70
  6. Step 6: Final answer
    x = 1,257,586.35

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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.