Home / 688,112.52-1,032,168.77-214,838.43

Finding the Fourth Proportional to 688,112.52, 1,032,168.77 and 214,838.43

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Solution

The fourth proportional to 688,112.52, 1,032,168.77 and 214,838.43 is: 322,257.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,112.52 : 1,032,168.77 = 214,838.43 : x
  2. Step 2: Convert to fraction form
    688,112.52/1,032,168.77 = 214,838.43/x
  3. Step 3: Cross multiply
    688,112.52x = 1,032,168.77 × 214,838.43
  4. Step 4: Simplify right side
    688,112.52x = 221,749,515,111.12
  5. Step 5: Solve for x
    x = 221,749,515,111.12/688,112.52
  6. Step 6: Final answer
    x = 322,257.64

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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.