Home / 459,027.10-688,540.65-206,209.90

Finding the Fourth Proportional to 459,027.10, 688,540.65 and 206,209.90

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Solution

The fourth proportional to 459,027.10, 688,540.65 and 206,209.90 is: 309,314.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,027.10 : 688,540.65 = 206,209.90 : x
  2. Step 2: Convert to fraction form
    459,027.10/688,540.65 = 206,209.90/x
  3. Step 3: Cross multiply
    459,027.10x = 688,540.65 × 206,209.90
  4. Step 4: Simplify right side
    459,027.10x = 141,983,898,582.44
  5. Step 5: Solve for x
    x = 141,983,898,582.44/459,027.10
  6. Step 6: Final answer
    x = 309,314.85

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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.