Home / 1,278,728.96-1,764,520.32-705,732.12

Finding the Fourth Proportional to 1,278,728.96, 1,764,520.32 and 705,732.12

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Solution

The fourth proportional to 1,278,728.96, 1,764,520.32 and 705,732.12 is: 973,840.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,728.96 : 1,764,520.32 = 705,732.12 : x
  2. Step 2: Convert to fraction form
    1,278,728.96/1,764,520.32 = 705,732.12/x
  3. Step 3: Cross multiply
    1,278,728.96x = 1,764,520.32 × 705,732.12
  4. Step 4: Simplify right side
    1,278,728.96x = 1,245,278,666,216.68
  5. Step 5: Solve for x
    x = 1,245,278,666,216.68/1,278,728.96
  6. Step 6: Final answer
    x = 973,840.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.