Home / 780,433.75-1,076,998.58-422,737.75

Finding the Fourth Proportional to 780,433.75, 1,076,998.58 and 422,737.75

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Solution

The fourth proportional to 780,433.75, 1,076,998.58 and 422,737.75 is: 583,378.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,433.75 : 1,076,998.58 = 422,737.75 : x
  2. Step 2: Convert to fraction form
    780,433.75/1,076,998.58 = 422,737.75/x
  3. Step 3: Cross multiply
    780,433.75x = 1,076,998.58 × 422,737.75
  4. Step 4: Simplify right side
    780,433.75x = 455,287,956,462.40
  5. Step 5: Solve for x
    x = 455,287,956,462.40/780,433.75
  6. Step 6: Final answer
    x = 583,378.10

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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.