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Finding the Fourth Proportional to 723,940.52, 999,024.62 and 401,643.70

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Solution

The fourth proportional to 723,940.52, 999,024.62 and 401,643.70 is: 554,260.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,940.52 : 999,024.62 = 401,643.70 : x
  2. Step 2: Convert to fraction form
    723,940.52/999,024.62 = 401,643.70/x
  3. Step 3: Cross multiply
    723,940.52x = 999,024.62 × 401,643.70
  4. Step 4: Simplify right side
    723,940.52x = 401,251,940,262.11
  5. Step 5: Solve for x
    x = 401,251,940,262.11/723,940.52
  6. Step 6: Final answer
    x = 554,260.93

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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.