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Finding the Fourth Proportional to 423,955.42, 635,875.72 and 124,380.16

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Solution

The fourth proportional to 423,955.42, 635,875.72 and 124,380.16 is: 186,553.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,955.42 : 635,875.72 = 124,380.16 : x
  2. Step 2: Convert to fraction form
    423,955.42/635,875.72 = 124,380.16/x
  3. Step 3: Cross multiply
    423,955.42x = 635,875.72 × 124,380.16
  4. Step 4: Simplify right side
    423,955.42x = 79,090,321,893.08
  5. Step 5: Solve for x
    x = 79,090,321,893.08/423,955.42
  6. Step 6: Final answer
    x = 186,553.39

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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.