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Finding the Fourth Proportional to 684,316.50, 944,274.36 and 378,351.56

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Solution

The fourth proportional to 684,316.50, 944,274.36 and 378,351.56 is: 522,079.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,316.50 : 944,274.36 = 378,351.56 : x
  2. Step 2: Convert to fraction form
    684,316.50/944,274.36 = 378,351.56/x
  3. Step 3: Cross multiply
    684,316.50x = 944,274.36 × 378,351.56
  4. Step 4: Simplify right side
    684,316.50x = 357,267,677,174.00
  5. Step 5: Solve for x
    x = 357,267,677,174.00/684,316.50
  6. Step 6: Final answer
    x = 522,079.59

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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.