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Finding the Fourth Proportional to 459,903.88, 634,623.36 and 339,110.38

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Solution

The fourth proportional to 459,903.88, 634,623.36 and 339,110.38 is: 467,939.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,903.88 : 634,623.36 = 339,110.38 : x
  2. Step 2: Convert to fraction form
    459,903.88/634,623.36 = 339,110.38/x
  3. Step 3: Cross multiply
    459,903.88x = 634,623.36 × 339,110.38
  4. Step 4: Simplify right side
    459,903.88x = 215,207,368,766.48
  5. Step 5: Solve for x
    x = 215,207,368,766.48/459,903.88
  6. Step 6: Final answer
    x = 467,939.89

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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.