Home / 779,838.57-1,076,177.31-422,142.57

Finding the Fourth Proportional to 779,838.57, 1,076,177.31 and 422,142.57

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Solution

The fourth proportional to 779,838.57, 1,076,177.31 and 422,142.57 is: 582,556.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,838.57 : 1,076,177.31 = 422,142.57 : x
  2. Step 2: Convert to fraction form
    779,838.57/1,076,177.31 = 422,142.57/x
  3. Step 3: Cross multiply
    779,838.57x = 1,076,177.31 × 422,142.57
  4. Step 4: Simplify right side
    779,838.57x = 454,300,255,419.09
  5. Step 5: Solve for x
    x = 454,300,255,419.09/779,838.57
  6. Step 6: Final answer
    x = 582,556.79

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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.