Home / 1,286,904.66-1,776,085.92-743,039.55

Finding the Fourth Proportional to 1,286,904.66, 1,776,085.92 and 743,039.55

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Solution

The fourth proportional to 1,286,904.66, 1,776,085.92 and 743,039.55 is: 1,025,485.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,904.66 : 1,776,085.92 = 743,039.55 : x
  2. Step 2: Convert to fraction form
    1,286,904.66/1,776,085.92 = 743,039.55/x
  3. Step 3: Cross multiply
    1,286,904.66x = 1,776,085.92 × 743,039.55
  4. Step 4: Simplify right side
    1,286,904.66x = 1,319,702,082,758.14
  5. Step 5: Solve for x
    x = 1,319,702,082,758.14/1,286,904.66
  6. Step 6: Final answer
    x = 1,025,485.51

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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.