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Finding the Fourth Proportional to 723,597.98, 998,626.46 and 401,411.84

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Solution

The fourth proportional to 723,597.98, 998,626.46 and 401,411.84 is: 553,982.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,597.98 : 998,626.46 = 401,411.84 : x
  2. Step 2: Convert to fraction form
    723,597.98/998,626.46 = 401,411.84/x
  3. Step 3: Cross multiply
    723,597.98x = 998,626.46 × 401,411.84
  4. Step 4: Simplify right side
    723,597.98x = 400,860,477,781.10
  5. Step 5: Solve for x
    x = 400,860,477,781.10/723,597.98
  6. Step 6: Final answer
    x = 553,982.31

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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.