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Finding the Fourth Proportional to 723,440.03, 998,298.57 and 401,138.19

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Solution

The fourth proportional to 723,440.03, 998,298.57 and 401,138.19 is: 553,543.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,440.03 : 998,298.57 = 401,138.19 : x
  2. Step 2: Convert to fraction form
    723,440.03/998,298.57 = 401,138.19/x
  3. Step 3: Cross multiply
    723,440.03x = 998,298.57 × 401,138.19
  4. Step 4: Simplify right side
    723,440.03x = 400,455,682,953.66
  5. Step 5: Solve for x
    x = 400,455,682,953.66/723,440.03
  6. Step 6: Final answer
    x = 553,543.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.