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Finding the Fourth Proportional to 723,906.52, 999,110.92 and 401,720.12

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Solution

The fourth proportional to 723,906.52, 999,110.92 and 401,720.12 is: 554,440.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,906.52 : 999,110.92 = 401,720.12 : x
  2. Step 2: Convert to fraction form
    723,906.52/999,110.92 = 401,720.12/x
  3. Step 3: Cross multiply
    723,906.52x = 999,110.92 × 401,720.12
  4. Step 4: Simplify right side
    723,906.52x = 401,362,958,675.71
  5. Step 5: Solve for x
    x = 401,362,958,675.71/723,906.52
  6. Step 6: Final answer
    x = 554,440.31

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1.5x scale

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.