Home / 780,055.50-1,076,476.59-422,359.50

Finding the Fourth Proportional to 780,055.50, 1,076,476.59 and 422,359.50

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Solution

The fourth proportional to 780,055.50, 1,076,476.59 and 422,359.50 is: 582,856.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,055.50 : 1,076,476.59 = 422,359.50 : x
  2. Step 2: Convert to fraction form
    780,055.50/1,076,476.59 = 422,359.50/x
  3. Step 3: Cross multiply
    780,055.50x = 1,076,476.59 × 422,359.50
  4. Step 4: Simplify right side
    780,055.50x = 454,660,114,314.11
  5. Step 5: Solve for x
    x = 454,660,114,314.11/780,055.50
  6. Step 6: Final answer
    x = 582,856.11

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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.