Home / 688,969.74-1,032,896.97-215,411.34

Finding the Fourth Proportional to 688,969.74, 1,032,896.97 and 215,411.34

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Solution

The fourth proportional to 688,969.74, 1,032,896.97 and 215,411.34 is: 322,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,969.74 : 1,032,896.97 = 215,411.34 : x
  2. Step 2: Convert to fraction form
    688,969.74/1,032,896.97 = 215,411.34/x
  3. Step 3: Cross multiply
    688,969.74x = 1,032,896.97 × 215,411.34
  4. Step 4: Simplify right side
    688,969.74x = 222,497,720,389.64
  5. Step 5: Solve for x
    x = 222,497,720,389.64/688,969.74
  6. Step 6: Final answer
    x = 322,942.66

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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.