Home / 1,112,395.32-1,668,752.82-343,952.91

Finding the Fourth Proportional to 1,112,395.32, 1,668,752.82 and 343,952.91

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Solution

The fourth proportional to 1,112,395.32, 1,668,752.82 and 343,952.91 is: 515,978.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,395.32 : 1,668,752.82 = 343,952.91 : x
  2. Step 2: Convert to fraction form
    1,112,395.32/1,668,752.82 = 343,952.91/x
  3. Step 3: Cross multiply
    1,112,395.32x = 1,668,752.82 × 343,952.91
  4. Step 4: Simplify right side
    1,112,395.32x = 573,972,388,509.71
  5. Step 5: Solve for x
    x = 573,972,388,509.71/1,112,395.32
  6. Step 6: Final answer
    x = 515,978.79

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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.