Home / 415,921.74-623,817.54-135,437.10

Finding the Fourth Proportional to 415,921.74, 623,817.54 and 135,437.10

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Solution

The fourth proportional to 415,921.74, 623,817.54 and 135,437.10 is: 203,134.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,921.74 : 623,817.54 = 135,437.10 : x
  2. Step 2: Convert to fraction form
    415,921.74/623,817.54 = 135,437.10/x
  3. Step 3: Cross multiply
    415,921.74x = 623,817.54 × 135,437.10
  4. Step 4: Simplify right side
    415,921.74x = 84,488,038,546.73
  5. Step 5: Solve for x
    x = 84,488,038,546.73/415,921.74
  6. Step 6: Final answer
    x = 203,134.46

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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.