Home / 1,126,011.56-1,554,007.73-642,649.94

Finding the Fourth Proportional to 1,126,011.56, 1,554,007.73 and 642,649.94

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Solution

The fourth proportional to 1,126,011.56, 1,554,007.73 and 642,649.94 is: 886,920.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,011.56 : 1,554,007.73 = 642,649.94 : x
  2. Step 2: Convert to fraction form
    1,126,011.56/1,554,007.73 = 642,649.94/x
  3. Step 3: Cross multiply
    1,126,011.56x = 1,554,007.73 × 642,649.94
  4. Step 4: Simplify right side
    1,126,011.56x = 998,682,963,460.75
  5. Step 5: Solve for x
    x = 998,682,963,460.75/1,126,011.56
  6. Step 6: Final answer
    x = 886,920.71

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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.