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Finding the Fourth Proportional to 684,280.49, 944,268.96 and 378,338.49

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Solution

The fourth proportional to 684,280.49, 944,268.96 and 378,338.49 is: 522,086.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,280.49 : 944,268.96 = 378,338.49 : x
  2. Step 2: Convert to fraction form
    684,280.49/944,268.96 = 378,338.49/x
  3. Step 3: Cross multiply
    684,280.49x = 944,268.96 × 378,338.49
  4. Step 4: Simplify right side
    684,280.49x = 357,253,292,480.27
  5. Step 5: Solve for x
    x = 357,253,292,480.27/684,280.49
  6. Step 6: Final answer
    x = 522,086.04

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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.