Home / 725,435.66-1,001,097.42-398,756.18

Finding the Fourth Proportional to 725,435.66, 1,001,097.42 and 398,756.18

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Solution

The fourth proportional to 725,435.66, 1,001,097.42 and 398,756.18 is: 550,281.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,435.66 : 1,001,097.42 = 398,756.18 : x
  2. Step 2: Convert to fraction form
    725,435.66/1,001,097.42 = 398,756.18/x
  3. Step 3: Cross multiply
    725,435.66x = 1,001,097.42 × 398,756.18
  4. Step 4: Simplify right side
    725,435.66x = 399,193,783,007.06
  5. Step 5: Solve for x
    x = 399,193,783,007.06/725,435.66
  6. Step 6: Final answer
    x = 550,281.44

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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.