Home / 1,276,756.93-1,915,415.65-378,269.02

Finding the Fourth Proportional to 1,276,756.93, 1,915,415.65 and 378,269.02

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Solution

The fourth proportional to 1,276,756.93, 1,915,415.65 and 378,269.02 is: 567,486.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,756.93 : 1,915,415.65 = 378,269.02 : x
  2. Step 2: Convert to fraction form
    1,276,756.93/1,915,415.65 = 378,269.02/x
  3. Step 3: Cross multiply
    1,276,756.93x = 1,915,415.65 × 378,269.02
  4. Step 4: Simplify right side
    1,276,756.93x = 724,542,391,241.09
  5. Step 5: Solve for x
    x = 724,542,391,241.09/1,276,756.93
  6. Step 6: Final answer
    x = 567,486.56

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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.