Home / 459,016.68-689,687.49-290,616.18

Finding the Fourth Proportional to 459,016.68, 689,687.49 and 290,616.18

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Solution

The fourth proportional to 459,016.68, 689,687.49 and 290,616.18 is: 436,660.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,016.68 : 689,687.49 = 290,616.18 : x
  2. Step 2: Convert to fraction form
    459,016.68/689,687.49 = 290,616.18/x
  3. Step 3: Cross multiply
    459,016.68x = 689,687.49 × 290,616.18
  4. Step 4: Simplify right side
    459,016.68x = 200,434,343,737.59
  5. Step 5: Solve for x
    x = 200,434,343,737.59/459,016.68
  6. Step 6: Final answer
    x = 436,660.26

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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.