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Finding the Fourth Proportional to 668,755.80, 922,882.92 and 382,282.08

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Solution

The fourth proportional to 668,755.80, 922,882.92 and 382,282.08 is: 527,549.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,755.80 : 922,882.92 = 382,282.08 : x
  2. Step 2: Convert to fraction form
    668,755.80/922,882.92 = 382,282.08/x
  3. Step 3: Cross multiply
    668,755.80x = 922,882.92 × 382,282.08
  4. Step 4: Simplify right side
    668,755.80x = 352,801,602,254.07
  5. Step 5: Solve for x
    x = 352,801,602,254.07/668,755.80
  6. Step 6: Final answer
    x = 527,549.22

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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.