Home / 767,805.15-1,152,414.56-388,989.42

Finding the Fourth Proportional to 767,805.15, 1,152,414.56 and 388,989.42

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Solution

The fourth proportional to 767,805.15, 1,152,414.56 and 388,989.42 is: 583,842.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,805.15 : 1,152,414.56 = 388,989.42 : x
  2. Step 2: Convert to fraction form
    767,805.15/1,152,414.56 = 388,989.42/x
  3. Step 3: Cross multiply
    767,805.15x = 1,152,414.56 × 388,989.42
  4. Step 4: Simplify right side
    767,805.15x = 448,277,071,293.96
  5. Step 5: Solve for x
    x = 448,277,071,293.96/767,805.15
  6. Step 6: Final answer
    x = 583,842.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.