Home / 1,268,620.18-1,749,002.22-1,007,840.74

Finding the Fourth Proportional to 1,268,620.18, 1,749,002.22 and 1,007,840.74

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Solution

The fourth proportional to 1,268,620.18, 1,749,002.22 and 1,007,840.74 is: 1,389,474.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,620.18 : 1,749,002.22 = 1,007,840.74 : x
  2. Step 2: Convert to fraction form
    1,268,620.18/1,749,002.22 = 1,007,840.74/x
  3. Step 3: Cross multiply
    1,268,620.18x = 1,749,002.22 × 1,007,840.74
  4. Step 4: Simplify right side
    1,268,620.18x = 1,762,715,691,666.44
  5. Step 5: Solve for x
    x = 1,762,715,691,666.44/1,268,620.18
  6. Step 6: Final answer
    x = 1,389,474.74

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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.