Home / 723,861.42-998,837.88-401,487.90

Finding the Fourth Proportional to 723,861.42, 998,837.88 and 401,487.90

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Solution

The fourth proportional to 723,861.42, 998,837.88 and 401,487.90 is: 554,002.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,861.42 : 998,837.88 = 401,487.90 : x
  2. Step 2: Convert to fraction form
    723,861.42/998,837.88 = 401,487.90/x
  3. Step 3: Cross multiply
    723,861.42x = 998,837.88 × 401,487.90
  4. Step 4: Simplify right side
    723,861.42x = 401,021,322,881.65
  5. Step 5: Solve for x
    x = 401,021,322,881.65/723,861.42
  6. Step 6: Final answer
    x = 554,002.90

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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.