Home / 485,850.40-723,789.25-463,990.84

Finding the Fourth Proportional to 485,850.40, 723,789.25 and 463,990.84

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Solution

The fourth proportional to 485,850.40, 723,789.25 and 463,990.84 is: 691,224.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,850.40 : 723,789.25 = 463,990.84 : x
  2. Step 2: Convert to fraction form
    485,850.40/723,789.25 = 463,990.84/x
  3. Step 3: Cross multiply
    485,850.40x = 723,789.25 × 463,990.84
  4. Step 4: Simplify right side
    485,850.40x = 335,831,579,121.02
  5. Step 5: Solve for x
    x = 335,831,579,121.02/485,850.40
  6. Step 6: Final answer
    x = 691,224.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.