Home / 1,116,840.20-1,675,260.32-667,689.53

Finding the Fourth Proportional to 1,116,840.20, 1,675,260.32 and 667,689.53

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Solution

The fourth proportional to 1,116,840.20, 1,675,260.32 and 667,689.53 is: 1,001,534.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,840.20 : 1,675,260.32 = 667,689.53 : x
  2. Step 2: Convert to fraction form
    1,116,840.20/1,675,260.32 = 667,689.53/x
  3. Step 3: Cross multiply
    1,116,840.20x = 1,675,260.32 × 667,689.53
  4. Step 4: Simplify right side
    1,116,840.20x = 1,118,553,763,973.70
  5. Step 5: Solve for x
    x = 1,118,553,763,973.70/1,116,840.20
  6. Step 6: Final answer
    x = 1,001,534.30

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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.