Home / 780,177.06-1,076,629.05-436,016.16

Finding the Fourth Proportional to 780,177.06, 1,076,629.05 and 436,016.16

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Solution

The fourth proportional to 780,177.06, 1,076,629.05 and 436,016.16 is: 601,693.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,177.06 : 1,076,629.05 = 436,016.16 : x
  2. Step 2: Convert to fraction form
    780,177.06/1,076,629.05 = 436,016.16/x
  3. Step 3: Cross multiply
    780,177.06x = 1,076,629.05 × 436,016.16
  4. Step 4: Simplify right side
    780,177.06x = 469,427,664,125.45
  5. Step 5: Solve for x
    x = 469,427,664,125.45/780,177.06
  6. Step 6: Final answer
    x = 601,693.75

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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.