Home / 723,690.45-998,812.41-401,504.34

Finding the Fourth Proportional to 723,690.45, 998,812.41 and 401,504.34

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Solution

The fourth proportional to 723,690.45, 998,812.41 and 401,504.34 is: 554,142.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,690.45 : 998,812.41 = 401,504.34 : x
  2. Step 2: Convert to fraction form
    723,690.45/998,812.41 = 401,504.34/x
  3. Step 3: Cross multiply
    723,690.45x = 998,812.41 × 401,504.34
  4. Step 4: Simplify right side
    723,690.45x = 401,027,517,460.86
  5. Step 5: Solve for x
    x = 401,027,517,460.86/723,690.45
  6. Step 6: Final answer
    x = 554,142.34

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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.