Home / 459,785.16-689,230.44-219,836.70

Finding the Fourth Proportional to 459,785.16, 689,230.44 and 219,836.70

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Solution

The fourth proportional to 459,785.16, 689,230.44 and 219,836.70 is: 329,541.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,785.16 : 689,230.44 = 219,836.70 : x
  2. Step 2: Convert to fraction form
    459,785.16/689,230.44 = 219,836.70/x
  3. Step 3: Cross multiply
    459,785.16x = 689,230.44 × 219,836.70
  4. Step 4: Simplify right side
    459,785.16x = 151,518,145,469.15
  5. Step 5: Solve for x
    x = 151,518,145,469.15/459,785.16
  6. Step 6: Final answer
    x = 329,541.18

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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.