Home / 779,831.12-1,076,167.14-422,135.12

Finding the Fourth Proportional to 779,831.12, 1,076,167.14 and 422,135.12

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Solution

The fourth proportional to 779,831.12, 1,076,167.14 and 422,135.12 is: 582,546.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,831.12 : 1,076,167.14 = 422,135.12 : x
  2. Step 2: Convert to fraction form
    779,831.12/1,076,167.14 = 422,135.12/x
  3. Step 3: Cross multiply
    779,831.12x = 1,076,167.14 × 422,135.12
  4. Step 4: Simplify right side
    779,831.12x = 454,287,944,783.96
  5. Step 5: Solve for x
    x = 454,287,944,783.96/779,831.12
  6. Step 6: Final answer
    x = 582,546.57

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Double scale
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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.