Home / 780,273.50-1,076,777.43-422,577.50

Finding the Fourth Proportional to 780,273.50, 1,076,777.43 and 422,577.50

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Solution

The fourth proportional to 780,273.50, 1,076,777.43 and 422,577.50 is: 583,156.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,273.50 : 1,076,777.43 = 422,577.50 : x
  2. Step 2: Convert to fraction form
    780,273.50/1,076,777.43 = 422,577.50/x
  3. Step 3: Cross multiply
    780,273.50x = 1,076,777.43 × 422,577.50
  4. Step 4: Simplify right side
    780,273.50x = 455,021,914,425.83
  5. Step 5: Solve for x
    x = 455,021,914,425.83/780,273.50
  6. Step 6: Final answer
    x = 583,156.95

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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.