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Finding the Fourth Proportional to 668,747.80, 922,871.88 and 382,274.02

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Solution

The fourth proportional to 668,747.80, 922,871.88 and 382,274.02 is: 527,538.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,747.80 : 922,871.88 = 382,274.02 : x
  2. Step 2: Convert to fraction form
    668,747.80/922,871.88 = 382,274.02/x
  3. Step 3: Cross multiply
    668,747.80x = 922,871.88 × 382,274.02
  4. Step 4: Simplify right side
    668,747.80x = 352,789,943,512.56
  5. Step 5: Solve for x
    x = 352,789,943,512.56/668,747.80
  6. Step 6: Final answer
    x = 527,538.10

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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.