Home / 1,292,072.08-1,938,285.42-438,914.68

Finding the Fourth Proportional to 1,292,072.08, 1,938,285.42 and 438,914.68

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Solution

The fourth proportional to 1,292,072.08, 1,938,285.42 and 438,914.68 is: 658,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,072.08 : 1,938,285.42 = 438,914.68 : x
  2. Step 2: Convert to fraction form
    1,292,072.08/1,938,285.42 = 438,914.68/x
  3. Step 3: Cross multiply
    1,292,072.08x = 1,938,285.42 × 438,914.68
  4. Step 4: Simplify right side
    1,292,072.08x = 850,741,924,867.97
  5. Step 5: Solve for x
    x = 850,741,924,867.97/1,292,072.08
  6. Step 6: Final answer
    x = 658,432.25

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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.