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Finding the Fourth Proportional to 636,674.37, 954,907.74 and 187,290.12

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Solution

The fourth proportional to 636,674.37, 954,907.74 and 187,290.12 is: 280,904.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,674.37 : 954,907.74 = 187,290.12 : x
  2. Step 2: Convert to fraction form
    636,674.37/954,907.74 = 187,290.12/x
  3. Step 3: Cross multiply
    636,674.37x = 954,907.74 × 187,290.12
  4. Step 4: Simplify right side
    636,674.37x = 178,844,785,213.53
  5. Step 5: Solve for x
    x = 178,844,785,213.53/636,674.37
  6. Step 6: Final answer
    x = 280,904.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.