Home / 988,520.49-1,482,490.07-419,897.07

Finding the Fourth Proportional to 988,520.49, 1,482,490.07 and 419,897.07

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Solution

The fourth proportional to 988,520.49, 1,482,490.07 and 419,897.07 is: 629,722.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,520.49 : 1,482,490.07 = 419,897.07 : x
  2. Step 2: Convert to fraction form
    988,520.49/1,482,490.07 = 419,897.07/x
  3. Step 3: Cross multiply
    988,520.49x = 1,482,490.07 × 419,897.07
  4. Step 4: Simplify right side
    988,520.49x = 622,493,234,597.61
  5. Step 5: Solve for x
    x = 622,493,234,597.61/988,520.49
  6. Step 6: Final answer
    x = 629,722.14

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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.