Home / 638,101.76-956,827.07-211,485.69

Finding the Fourth Proportional to 638,101.76, 956,827.07 and 211,485.69

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Solution

The fourth proportional to 638,101.76, 956,827.07 and 211,485.69 is: 317,120.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,101.76 : 956,827.07 = 211,485.69 : x
  2. Step 2: Convert to fraction form
    638,101.76/956,827.07 = 211,485.69/x
  3. Step 3: Cross multiply
    638,101.76x = 956,827.07 × 211,485.69
  4. Step 4: Simplify right side
    638,101.76x = 202,355,236,433.37
  5. Step 5: Solve for x
    x = 202,355,236,433.37/638,101.76
  6. Step 6: Final answer
    x = 317,120.64

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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.