Home / 780,270.50-1,076,773.30-422,574.50

Finding the Fourth Proportional to 780,270.50, 1,076,773.30 and 422,574.50

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Solution

The fourth proportional to 780,270.50, 1,076,773.30 and 422,574.50 is: 583,152.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,270.50 : 1,076,773.30 = 422,574.50 : x
  2. Step 2: Convert to fraction form
    780,270.50/1,076,773.30 = 422,574.50/x
  3. Step 3: Cross multiply
    780,270.50x = 1,076,773.30 × 422,574.50
  4. Step 4: Simplify right side
    780,270.50x = 455,016,938,860.85
  5. Step 5: Solve for x
    x = 455,016,938,860.85/780,270.50
  6. Step 6: Final answer
    x = 583,152.82

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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.