Home / 459,990.20-634,786.42-256,036.73

Finding the Fourth Proportional to 459,990.20, 634,786.42 and 256,036.73

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Solution

The fourth proportional to 459,990.20, 634,786.42 and 256,036.73 is: 353,330.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,990.20 : 634,786.42 = 256,036.73 : x
  2. Step 2: Convert to fraction form
    459,990.20/634,786.42 = 256,036.73/x
  3. Step 3: Cross multiply
    459,990.20x = 634,786.42 × 256,036.73
  4. Step 4: Simplify right side
    459,990.20x = 162,528,634,771.09
  5. Step 5: Solve for x
    x = 162,528,634,771.09/459,990.20
  6. Step 6: Final answer
    x = 353,330.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.