Home / 459,730.28-689,588.51-206,832.18

Finding the Fourth Proportional to 459,730.28, 689,588.51 and 206,832.18

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Solution

The fourth proportional to 459,730.28, 689,588.51 and 206,832.18 is: 310,245.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,730.28 : 689,588.51 = 206,832.18 : x
  2. Step 2: Convert to fraction form
    459,730.28/689,588.51 = 206,832.18/x
  3. Step 3: Cross multiply
    459,730.28x = 689,588.51 × 206,832.18
  4. Step 4: Simplify right side
    459,730.28x = 142,629,094,826.25
  5. Step 5: Solve for x
    x = 142,629,094,826.25/459,730.28
  6. Step 6: Final answer
    x = 310,245.16

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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.