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Finding the Fourth Proportional to 668,735.12, 922,854.52 and 382,261.46

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Solution

The fourth proportional to 668,735.12, 922,854.52 and 382,261.46 is: 527,520.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,735.12 : 922,854.52 = 382,261.46 : x
  2. Step 2: Convert to fraction form
    668,735.12/922,854.52 = 382,261.46/x
  3. Step 3: Cross multiply
    668,735.12x = 922,854.52 × 382,261.46
  4. Step 4: Simplify right side
    668,735.12x = 352,771,710,612.87
  5. Step 5: Solve for x
    x = 352,771,710,612.87/668,735.12
  6. Step 6: Final answer
    x = 527,520.84

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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.