Home / 901,700.20-1,245,642.42-720,173.80

Finding the Fourth Proportional to 901,700.20, 1,245,642.42 and 720,173.80

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Solution

The fourth proportional to 901,700.20, 1,245,642.42 and 720,173.80 is: 994,875.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,700.20 : 1,245,642.42 = 720,173.80 : x
  2. Step 2: Convert to fraction form
    901,700.20/1,245,642.42 = 720,173.80/x
  3. Step 3: Cross multiply
    901,700.20x = 1,245,642.42 × 720,173.80
  4. Step 4: Simplify right side
    901,700.20x = 897,079,035,052.60
  5. Step 5: Solve for x
    x = 897,079,035,052.60/901,700.20
  6. Step 6: Final answer
    x = 994,875.05

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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.