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Finding the Fourth Proportional to 723,680.14, 998,798.18 and 401,494.03

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Solution

The fourth proportional to 723,680.14, 998,798.18 and 401,494.03 is: 554,128.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,680.14 : 998,798.18 = 401,494.03 : x
  2. Step 2: Convert to fraction form
    723,680.14/998,798.18 = 401,494.03/x
  3. Step 3: Cross multiply
    723,680.14x = 998,798.18 × 401,494.03
  4. Step 4: Simplify right side
    723,680.14x = 401,011,507,558.64
  5. Step 5: Solve for x
    x = 401,011,507,558.64/723,680.14
  6. Step 6: Final answer
    x = 554,128.11

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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.