Home / 1,297,490.22-1,790,450.19-724,418.46

Finding the Fourth Proportional to 1,297,490.22, 1,790,450.19 and 724,418.46

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Solution

The fourth proportional to 1,297,490.22, 1,790,450.19 and 724,418.46 is: 999,649.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,490.22 : 1,790,450.19 = 724,418.46 : x
  2. Step 2: Convert to fraction form
    1,297,490.22/1,790,450.19 = 724,418.46/x
  3. Step 3: Cross multiply
    1,297,490.22x = 1,790,450.19 × 724,418.46
  4. Step 4: Simplify right side
    1,297,490.22x = 1,297,035,169,346.51
  5. Step 5: Solve for x
    x = 1,297,035,169,346.51/1,297,490.22
  6. Step 6: Final answer
    x = 999,649.28

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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.