Home / 1,297,021.90-1,789,705.11-724,049.50

Finding the Fourth Proportional to 1,297,021.90, 1,789,705.11 and 724,049.50

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Solution

The fourth proportional to 1,297,021.90, 1,789,705.11 and 724,049.50 is: 999,084.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,021.90 : 1,789,705.11 = 724,049.50 : x
  2. Step 2: Convert to fraction form
    1,297,021.90/1,789,705.11 = 724,049.50/x
  3. Step 3: Cross multiply
    1,297,021.90x = 1,789,705.11 × 724,049.50
  4. Step 4: Simplify right side
    1,297,021.90x = 1,295,835,090,042.95
  5. Step 5: Solve for x
    x = 1,295,835,090,042.95/1,297,021.90
  6. Step 6: Final answer
    x = 999,084.97

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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.