Home / 459,659.24-689,488.86-144,140.75

Finding the Fourth Proportional to 459,659.24, 689,488.86 and 144,140.75

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Solution

The fourth proportional to 459,659.24, 689,488.86 and 144,140.75 is: 216,211.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,659.24 : 689,488.86 = 144,140.75 : x
  2. Step 2: Convert to fraction form
    459,659.24/689,488.86 = 144,140.75/x
  3. Step 3: Cross multiply
    459,659.24x = 689,488.86 × 144,140.75
  4. Step 4: Simplify right side
    459,659.24x = 99,383,441,397.05
  5. Step 5: Solve for x
    x = 99,383,441,397.05/459,659.24
  6. Step 6: Final answer
    x = 216,211.13

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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.