Home / 1,100,429.61-1,518,229.84-664,684.17

Finding the Fourth Proportional to 1,100,429.61, 1,518,229.84 and 664,684.17

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Solution

The fourth proportional to 1,100,429.61, 1,518,229.84 and 664,684.17 is: 917,044.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,429.61 : 1,518,229.84 = 664,684.17 : x
  2. Step 2: Convert to fraction form
    1,100,429.61/1,518,229.84 = 664,684.17/x
  3. Step 3: Cross multiply
    1,100,429.61x = 1,518,229.84 × 664,684.17
  4. Step 4: Simplify right side
    1,100,429.61x = 1,009,143,341,069.63
  5. Step 5: Solve for x
    x = 1,009,143,341,069.63/1,100,429.61
  6. Step 6: Final answer
    x = 917,044.88

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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.