Home / 1,126,288.32-1,553,889.36-642,504.48

Finding the Fourth Proportional to 1,126,288.32, 1,553,889.36 and 642,504.48

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Solution

The fourth proportional to 1,126,288.32, 1,553,889.36 and 642,504.48 is: 886,434.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,288.32 : 1,553,889.36 = 642,504.48 : x
  2. Step 2: Convert to fraction form
    1,126,288.32/1,553,889.36 = 642,504.48/x
  3. Step 3: Cross multiply
    1,126,288.32x = 1,553,889.36 × 642,504.48
  4. Step 4: Simplify right side
    1,126,288.32x = 998,380,875,224.33
  5. Step 5: Solve for x
    x = 998,380,875,224.33/1,126,288.32
  6. Step 6: Final answer
    x = 886,434.55

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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.