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Finding the Fourth Proportional to 723,898.59, 999,027.37 and 417,987.87

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Solution

The fourth proportional to 723,898.59, 999,027.37 and 417,987.87 is: 576,850.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,898.59 : 999,027.37 = 417,987.87 : x
  2. Step 2: Convert to fraction form
    723,898.59/999,027.37 = 417,987.87/x
  3. Step 3: Cross multiply
    723,898.59x = 999,027.37 × 417,987.87
  4. Step 4: Simplify right side
    723,898.59x = 417,581,317,666.68
  5. Step 5: Solve for x
    x = 417,581,317,666.68/723,898.59
  6. Step 6: Final answer
    x = 576,850.57

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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.