Home / 688,120.07-1,032,180.06-214,845.98

Finding the Fourth Proportional to 688,120.07, 1,032,180.06 and 214,845.98

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Solution

The fourth proportional to 688,120.07, 1,032,180.06 and 214,845.98 is: 322,268.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,120.07 : 1,032,180.06 = 214,845.98 : x
  2. Step 2: Convert to fraction form
    688,120.07/1,032,180.06 = 214,845.98/x
  3. Step 3: Cross multiply
    688,120.07x = 1,032,180.06 × 214,845.98
  4. Step 4: Simplify right side
    688,120.07x = 221,759,736,527.16
  5. Step 5: Solve for x
    x = 221,759,736,527.16/688,120.07
  6. Step 6: Final answer
    x = 322,268.96

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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.