Home / 684,636.90-1,027,101.15-211,370.10

Finding the Fourth Proportional to 684,636.90, 1,027,101.15 and 211,370.10

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Solution

The fourth proportional to 684,636.90, 1,027,101.15 and 211,370.10 is: 317,100.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,636.90 : 1,027,101.15 = 211,370.10 : x
  2. Step 2: Convert to fraction form
    684,636.90/1,027,101.15 = 211,370.10/x
  3. Step 3: Cross multiply
    684,636.90x = 1,027,101.15 × 211,370.10
  4. Step 4: Simplify right side
    684,636.90x = 217,098,472,785.62
  5. Step 5: Solve for x
    x = 217,098,472,785.62/684,636.90
  6. Step 6: Final answer
    x = 317,100.16

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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.