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Finding the Fourth Proportional to 723,606.18, 998,609.87 and 401,297.07

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Solution

The fourth proportional to 723,606.18, 998,609.87 and 401,297.07 is: 553,808.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,606.18 : 998,609.87 = 401,297.07 : x
  2. Step 2: Convert to fraction form
    723,606.18/998,609.87 = 401,297.07/x
  3. Step 3: Cross multiply
    723,606.18x = 998,609.87 × 401,297.07
  4. Step 4: Simplify right side
    723,606.18x = 400,739,212,897.60
  5. Step 5: Solve for x
    x = 400,739,212,897.60/723,606.18
  6. Step 6: Final answer
    x = 553,808.44

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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.