Home / 1,112,178.81-1,534,780.98-628,723.32

Finding the Fourth Proportional to 1,112,178.81, 1,534,780.98 and 628,723.32

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Solution

The fourth proportional to 1,112,178.81, 1,534,780.98 and 628,723.32 is: 867,623.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,178.81 : 1,534,780.98 = 628,723.32 : x
  2. Step 2: Convert to fraction form
    1,112,178.81/1,534,780.98 = 628,723.32/x
  3. Step 3: Cross multiply
    1,112,178.81x = 1,534,780.98 × 628,723.32
  4. Step 4: Simplify right side
    1,112,178.81x = 964,952,593,218.45
  5. Step 5: Solve for x
    x = 964,952,593,218.45/1,112,178.81
  6. Step 6: Final answer
    x = 867,623.61

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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.