Home / 780,690.32-1,076,922.24-539,099.76

Finding the Fourth Proportional to 780,690.32, 1,076,922.24 and 539,099.76

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Solution

The fourth proportional to 780,690.32, 1,076,922.24 and 539,099.76 is: 743,660.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,690.32 : 1,076,922.24 = 539,099.76 : x
  2. Step 2: Convert to fraction form
    780,690.32/1,076,922.24 = 539,099.76/x
  3. Step 3: Cross multiply
    780,690.32x = 1,076,922.24 × 539,099.76
  4. Step 4: Simplify right side
    780,690.32x = 580,568,521,122.66
  5. Step 5: Solve for x
    x = 580,568,521,122.66/780,690.32
  6. Step 6: Final answer
    x = 743,660.46

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1.5x scale

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.