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Finding the Fourth Proportional to 723,715.56, 998,073.97 and 451,808.69

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Solution

The fourth proportional to 723,715.56, 998,073.97 and 451,808.69 is: 623,088.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,715.56 : 998,073.97 = 451,808.69 : x
  2. Step 2: Convert to fraction form
    723,715.56/998,073.97 = 451,808.69/x
  3. Step 3: Cross multiply
    723,715.56x = 998,073.97 × 451,808.69
  4. Step 4: Simplify right side
    723,715.56x = 450,938,486,788.91
  5. Step 5: Solve for x
    x = 450,938,486,788.91/723,715.56
  6. Step 6: Final answer
    x = 623,088.01

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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.