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Finding the Fourth Proportional to 821,625.18, 1,133,730.03 and 459,003.97

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Solution

The fourth proportional to 821,625.18, 1,133,730.03 and 459,003.97 is: 633,362.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,625.18 : 1,133,730.03 = 459,003.97 : x
  2. Step 2: Convert to fraction form
    821,625.18/1,133,730.03 = 459,003.97/x
  3. Step 3: Cross multiply
    821,625.18x = 1,133,730.03 × 459,003.97
  4. Step 4: Simplify right side
    821,625.18x = 520,386,584,678.22
  5. Step 5: Solve for x
    x = 520,386,584,678.22/821,625.18
  6. Step 6: Final answer
    x = 633,362.51

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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.