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Finding the Fourth Proportional to 684,265.96, 944,290.02 and 378,363.88

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Solution

The fourth proportional to 684,265.96, 944,290.02 and 378,363.88 is: 522,143.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,265.96 : 944,290.02 = 378,363.88 : x
  2. Step 2: Convert to fraction form
    684,265.96/944,290.02 = 378,363.88/x
  3. Step 3: Cross multiply
    684,265.96x = 944,290.02 × 378,363.88
  4. Step 4: Simplify right side
    684,265.96x = 357,285,235,812.48
  5. Step 5: Solve for x
    x = 357,285,235,812.48/684,265.96
  6. Step 6: Final answer
    x = 522,143.81

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.