Home / 747,415.72-1,120,456.94-273,990.58

Finding the Fourth Proportional to 747,415.72, 1,120,456.94 and 273,990.58

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Solution

The fourth proportional to 747,415.72, 1,120,456.94 and 273,990.58 is: 410,741.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,415.72 : 1,120,456.94 = 273,990.58 : x
  2. Step 2: Convert to fraction form
    747,415.72/1,120,456.94 = 273,990.58/x
  3. Step 3: Cross multiply
    747,415.72x = 1,120,456.94 × 273,990.58
  4. Step 4: Simplify right side
    747,415.72x = 306,994,646,855.63
  5. Step 5: Solve for x
    x = 306,994,646,855.63/747,415.72
  6. Step 6: Final answer
    x = 410,741.49

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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.