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Finding the Fourth Proportional to 550,725.68, 759,954.84 and 308,975.60

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Solution

The fourth proportional to 550,725.68, 759,954.84 and 308,975.60 is: 426,360.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,725.68 : 759,954.84 = 308,975.60 : x
  2. Step 2: Convert to fraction form
    550,725.68/759,954.84 = 308,975.60/x
  3. Step 3: Cross multiply
    550,725.68x = 759,954.84 × 308,975.60
  4. Step 4: Simplify right side
    550,725.68x = 234,807,502,661.90
  5. Step 5: Solve for x
    x = 234,807,502,661.90/550,725.68
  6. Step 6: Final answer
    x = 426,360.18

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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.