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Finding the Fourth Proportional to 668,581.43, 922,705.36 and 382,045.82

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Solution

The fourth proportional to 668,581.43, 922,705.36 and 382,045.82 is: 527,259.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,581.43 : 922,705.36 = 382,045.82 : x
  2. Step 2: Convert to fraction form
    668,581.43/922,705.36 = 382,045.82/x
  3. Step 3: Cross multiply
    668,581.43x = 922,705.36 × 382,045.82
  4. Step 4: Simplify right side
    668,581.43x = 352,515,720,310.95
  5. Step 5: Solve for x
    x = 352,515,720,310.95/668,581.43
  6. Step 6: Final answer
    x = 527,259.22

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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.