Home / 725,431.88-1,001,076-403,133.78

Finding the Fourth Proportional to 725,431.88, 1,001,076 and 403,133.78

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Solution

The fourth proportional to 725,431.88, 1,001,076 and 403,133.78 is: 556,313.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,431.88 : 1,001,076 = 403,133.78 : x
  2. Step 2: Convert to fraction form
    725,431.88/1,001,076 = 403,133.78/x
  3. Step 3: Cross multiply
    725,431.88x = 1,001,076 × 403,133.78
  4. Step 4: Simplify right side
    725,431.88x = 403,567,551,947.28
  5. Step 5: Solve for x
    x = 403,567,551,947.28/725,431.88
  6. Step 6: Final answer
    x = 556,313.51

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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.