Home / 415,799.46-623,708.91-135,338.58

Finding the Fourth Proportional to 415,799.46, 623,708.91 and 135,338.58

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Solution

The fourth proportional to 415,799.46, 623,708.91 and 135,338.58 is: 203,011.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,799.46 : 623,708.91 = 135,338.58 : x
  2. Step 2: Convert to fraction form
    415,799.46/623,708.91 = 135,338.58/x
  3. Step 3: Cross multiply
    415,799.46x = 623,708.91 × 135,338.58
  4. Step 4: Simplify right side
    415,799.46x = 84,411,878,212.75
  5. Step 5: Solve for x
    x = 84,411,878,212.75/415,799.46
  6. Step 6: Final answer
    x = 203,011.03

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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.