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Finding the Fourth Proportional to 723,795.88, 999,355.98 and 482,647

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Solution

The fourth proportional to 723,795.88, 999,355.98 and 482,647 is: 666,398.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,795.88 : 999,355.98 = 482,647 : x
  2. Step 2: Convert to fraction form
    723,795.88/999,355.98 = 482,647/x
  3. Step 3: Cross multiply
    723,795.88x = 999,355.98 × 482,647
  4. Step 4: Simplify right side
    723,795.88x = 482,336,165,679.06
  5. Step 5: Solve for x
    x = 482,336,165,679.06/723,795.88
  6. Step 6: Final answer
    x = 666,398.05

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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.