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Finding the Fourth Proportional to 723,606.62, 998,610.47 and 401,297.51

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Solution

The fourth proportional to 723,606.62, 998,610.47 and 401,297.51 is: 553,809.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,606.62 : 998,610.47 = 401,297.51 : x
  2. Step 2: Convert to fraction form
    723,606.62/998,610.47 = 401,297.51/x
  3. Step 3: Cross multiply
    723,606.62x = 998,610.47 × 401,297.51
  4. Step 4: Simplify right side
    723,606.62x = 400,739,895,070.93
  5. Step 5: Solve for x
    x = 400,739,895,070.93/723,606.62
  6. Step 6: Final answer
    x = 553,809.05

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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.