Home / 725,419.84-1,001,103.68-403,143.52

Finding the Fourth Proportional to 725,419.84, 1,001,103.68 and 403,143.52

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Solution

The fourth proportional to 725,419.84, 1,001,103.68 and 403,143.52 is: 556,351.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,419.84 : 1,001,103.68 = 403,143.52 : x
  2. Step 2: Convert to fraction form
    725,419.84/1,001,103.68 = 403,143.52/x
  3. Step 3: Cross multiply
    725,419.84x = 1,001,103.68 × 403,143.52
  4. Step 4: Simplify right side
    725,419.84x = 403,588,461,440.15
  5. Step 5: Solve for x
    x = 403,588,461,440.15/725,419.84
  6. Step 6: Final answer
    x = 556,351.56

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1.5x scale

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.