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Finding the Fourth Proportional to 437,673.78, 654,644.43 and 268,779.06

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Solution

The fourth proportional to 437,673.78, 654,644.43 and 268,779.06 is: 402,022.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,673.78 : 654,644.43 = 268,779.06 : x
  2. Step 2: Convert to fraction form
    437,673.78/654,644.43 = 268,779.06/x
  3. Step 3: Cross multiply
    437,673.78x = 654,644.43 × 268,779.06
  4. Step 4: Simplify right side
    437,673.78x = 175,954,714,529.64
  5. Step 5: Solve for x
    x = 175,954,714,529.64/437,673.78
  6. Step 6: Final answer
    x = 402,022.52

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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.