Home / 1,276,723.76-1,915,365.96-378,235.85

Finding the Fourth Proportional to 1,276,723.76, 1,915,365.96 and 378,235.85

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Solution

The fourth proportional to 1,276,723.76, 1,915,365.96 and 378,235.85 is: 567,436.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,723.76 : 1,915,365.96 = 378,235.85 : x
  2. Step 2: Convert to fraction form
    1,276,723.76/1,915,365.96 = 378,235.85/x
  3. Step 3: Cross multiply
    1,276,723.76x = 1,915,365.96 × 378,235.85
  4. Step 4: Simplify right side
    1,276,723.76x = 724,460,062,364.84
  5. Step 5: Solve for x
    x = 724,460,062,364.84/1,276,723.76
  6. Step 6: Final answer
    x = 567,436.82

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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.