Home / 723,588.99-998,612.64-401,403.15

Finding the Fourth Proportional to 723,588.99, 998,612.64 and 401,403.15

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Solution

The fourth proportional to 723,588.99, 998,612.64 and 401,403.15 is: 553,969.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,588.99 : 998,612.64 = 401,403.15 : x
  2. Step 2: Convert to fraction form
    723,588.99/998,612.64 = 401,403.15/x
  3. Step 3: Cross multiply
    723,588.99x = 998,612.64 × 401,403.15
  4. Step 4: Simplify right side
    723,588.99x = 400,846,259,325.82
  5. Step 5: Solve for x
    x = 400,846,259,325.82/723,588.99
  6. Step 6: Final answer
    x = 553,969.54

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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.