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Finding the Fourth Proportional to 684,269.34, 944,253.69 and 378,327.84

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Solution

The fourth proportional to 684,269.34, 944,253.69 and 378,327.84 is: 522,071.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,269.34 : 944,253.69 = 378,327.84 : x
  2. Step 2: Convert to fraction form
    684,269.34/944,253.69 = 378,327.84/x
  3. Step 3: Cross multiply
    684,269.34x = 944,253.69 × 378,327.84
  4. Step 4: Simplify right side
    684,269.34x = 357,237,458,949.73
  5. Step 5: Solve for x
    x = 357,237,458,949.73/684,269.34
  6. Step 6: Final answer
    x = 522,071.41

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1.5x scale

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.