Home / 459,936.36-690,018.45-220,232.66

Finding the Fourth Proportional to 459,936.36, 690,018.45 and 220,232.66

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Solution

The fourth proportional to 459,936.36, 690,018.45 and 220,232.66 is: 330,403.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,936.36 : 690,018.45 = 220,232.66 : x
  2. Step 2: Convert to fraction form
    459,936.36/690,018.45 = 220,232.66/x
  3. Step 3: Cross multiply
    459,936.36x = 690,018.45 × 220,232.66
  4. Step 4: Simplify right side
    459,936.36x = 151,964,594,416.61
  5. Step 5: Solve for x
    x = 151,964,594,416.61/459,936.36
  6. Step 6: Final answer
    x = 330,403.52

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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.