Home / 459,640.27-689,460.39-144,122.59

Finding the Fourth Proportional to 459,640.27, 689,460.39 and 144,122.59

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Solution

The fourth proportional to 459,640.27, 689,460.39 and 144,122.59 is: 216,183.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,640.27 : 689,460.39 = 144,122.59 : x
  2. Step 2: Convert to fraction form
    459,640.27/689,460.39 = 144,122.59/x
  3. Step 3: Cross multiply
    459,640.27x = 689,460.39 × 144,122.59
  4. Step 4: Simplify right side
    459,640.27x = 99,366,817,109.21
  5. Step 5: Solve for x
    x = 99,366,817,109.21/459,640.27
  6. Step 6: Final answer
    x = 216,183.88

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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.