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Finding the Fourth Proportional to 668,720.34, 922,833.95 and 382,246.58

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Solution

The fourth proportional to 668,720.34, 922,833.95 and 382,246.58 is: 527,500.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,720.34 : 922,833.95 = 382,246.58 : x
  2. Step 2: Convert to fraction form
    668,720.34/922,833.95 = 382,246.58/x
  3. Step 3: Cross multiply
    668,720.34x = 922,833.95 × 382,246.58
  4. Step 4: Simplify right side
    668,720.34x = 352,750,121,691.24
  5. Step 5: Solve for x
    x = 352,750,121,691.24/668,720.34
  6. Step 6: Final answer
    x = 527,500.21

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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.