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Finding the Fourth Proportional to 684,524.32, 944,635.47 and 378,576.69

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Solution

The fourth proportional to 684,524.32, 944,635.47 and 378,576.69 is: 522,431.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,524.32 : 944,635.47 = 378,576.69 : x
  2. Step 2: Convert to fraction form
    684,524.32/944,635.47 = 378,576.69/x
  3. Step 3: Cross multiply
    684,524.32x = 944,635.47 × 378,576.69
  4. Step 4: Simplify right side
    684,524.32x = 357,616,964,527.15
  5. Step 5: Solve for x
    x = 357,616,964,527.15/684,524.32
  6. Step 6: Final answer
    x = 522,431.35

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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.