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Finding the Fourth Proportional to 684,280.56, 944,290.44 and 378,349.17

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Solution

The fourth proportional to 684,280.56, 944,290.44 and 378,349.17 is: 522,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,280.56 : 944,290.44 = 378,349.17 : x
  2. Step 2: Convert to fraction form
    684,280.56/944,290.44 = 378,349.17/x
  3. Step 3: Cross multiply
    684,280.56x = 944,290.44 × 378,349.17
  4. Step 4: Simplify right side
    684,280.56x = 357,271,504,212.94
  5. Step 5: Solve for x
    x = 357,271,504,212.94/684,280.56
  6. Step 6: Final answer
    x = 522,112.60

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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.