Home / 727,705.83-1,091,755.68-412,384.17

Finding the Fourth Proportional to 727,705.83, 1,091,755.68 and 412,384.17

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Solution

The fourth proportional to 727,705.83, 1,091,755.68 and 412,384.17 is: 618,687.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,705.83 : 1,091,755.68 = 412,384.17 : x
  2. Step 2: Convert to fraction form
    727,705.83/1,091,755.68 = 412,384.17/x
  3. Step 3: Cross multiply
    727,705.83x = 1,091,755.68 × 412,384.17
  4. Step 4: Simplify right side
    727,705.83x = 450,222,759,939.59
  5. Step 5: Solve for x
    x = 450,222,759,939.59/727,705.83
  6. Step 6: Final answer
    x = 618,687.86

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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.