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Finding the Fourth Proportional to 636,628.50, 954,739.86 and 210,084.84

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Solution

The fourth proportional to 636,628.50, 954,739.86 and 210,084.84 is: 315,060.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,628.50 : 954,739.86 = 210,084.84 : x
  2. Step 2: Convert to fraction form
    636,628.50/954,739.86 = 210,084.84/x
  3. Step 3: Cross multiply
    636,628.50x = 954,739.86 × 210,084.84
  4. Step 4: Simplify right side
    636,628.50x = 200,576,370,729.72
  5. Step 5: Solve for x
    x = 200,576,370,729.72/636,628.50
  6. Step 6: Final answer
    x = 315,060.31

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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.