Home / 1,109,761.55-1,663,642.58-399,289.76

Finding the Fourth Proportional to 1,109,761.55, 1,663,642.58 and 399,289.76

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Solution

The fourth proportional to 1,109,761.55, 1,663,642.58 and 399,289.76 is: 598,574.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,761.55 : 1,663,642.58 = 399,289.76 : x
  2. Step 2: Convert to fraction form
    1,109,761.55/1,663,642.58 = 399,289.76/x
  3. Step 3: Cross multiply
    1,109,761.55x = 1,663,642.58 × 399,289.76
  4. Step 4: Simplify right side
    1,109,761.55x = 664,275,436,179.32
  5. Step 5: Solve for x
    x = 664,275,436,179.32/1,109,761.55
  6. Step 6: Final answer
    x = 598,574.93

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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.