Home / 723,439.46-998,297.80-401,137.63

Finding the Fourth Proportional to 723,439.46, 998,297.80 and 401,137.63

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Solution

The fourth proportional to 723,439.46, 998,297.80 and 401,137.63 is: 553,542.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,439.46 : 998,297.80 = 401,137.63 : x
  2. Step 2: Convert to fraction form
    723,439.46/998,297.80 = 401,137.63/x
  3. Step 3: Cross multiply
    723,439.46x = 998,297.80 × 401,137.63
  4. Step 4: Simplify right side
    723,439.46x = 400,454,810,027.63
  5. Step 5: Solve for x
    x = 400,454,810,027.63/723,439.46
  6. Step 6: Final answer
    x = 553,542.94

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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.