Home / 725,352.57-1,001,078.60-438,875.01

Finding the Fourth Proportional to 725,352.57, 1,001,078.60 and 438,875.01

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Solution

The fourth proportional to 725,352.57, 1,001,078.60 and 438,875.01 is: 605,703.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,352.57 : 1,001,078.60 = 438,875.01 : x
  2. Step 2: Convert to fraction form
    725,352.57/1,001,078.60 = 438,875.01/x
  3. Step 3: Cross multiply
    725,352.57x = 1,001,078.60 × 438,875.01
  4. Step 4: Simplify right side
    725,352.57x = 439,348,378,391.41
  5. Step 5: Solve for x
    x = 439,348,378,391.41/725,352.57
  6. Step 6: Final answer
    x = 605,703.21

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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.