Home / 725,420.84-1,001,105.06-403,144.52

Finding the Fourth Proportional to 725,420.84, 1,001,105.06 and 403,144.52

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Solution

The fourth proportional to 725,420.84, 1,001,105.06 and 403,144.52 is: 556,352.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,420.84 : 1,001,105.06 = 403,144.52 : x
  2. Step 2: Convert to fraction form
    725,420.84/1,001,105.06 = 403,144.52/x
  3. Step 3: Cross multiply
    725,420.84x = 1,001,105.06 × 403,144.52
  4. Step 4: Simplify right side
    725,420.84x = 403,590,018,883.27
  5. Step 5: Solve for x
    x = 403,590,018,883.27/725,420.84
  6. Step 6: Final answer
    x = 556,352.94

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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.