Home / 763,083.59-1,052,839.42-491,308.74

Finding the Fourth Proportional to 763,083.59, 1,052,839.42 and 491,308.74

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Solution

The fourth proportional to 763,083.59, 1,052,839.42 and 491,308.74 is: 677,867.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,083.59 : 1,052,839.42 = 491,308.74 : x
  2. Step 2: Convert to fraction form
    763,083.59/1,052,839.42 = 491,308.74/x
  3. Step 3: Cross multiply
    763,083.59x = 1,052,839.42 × 491,308.74
  4. Step 4: Simplify right side
    763,083.59x = 517,269,207,634.26
  5. Step 5: Solve for x
    x = 517,269,207,634.26/763,083.59
  6. Step 6: Final answer
    x = 677,867.04

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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.