Home / 1,125,201.65-1,687,620.55-415,563.89

Finding the Fourth Proportional to 1,125,201.65, 1,687,620.55 and 415,563.89

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Solution

The fourth proportional to 1,125,201.65, 1,687,620.55 and 415,563.89 is: 623,278.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,201.65 : 1,687,620.55 = 415,563.89 : x
  2. Step 2: Convert to fraction form
    1,125,201.65/1,687,620.55 = 415,563.89/x
  3. Step 3: Cross multiply
    1,125,201.65x = 1,687,620.55 × 415,563.89
  4. Step 4: Simplify right side
    1,125,201.65x = 701,314,160,601.94
  5. Step 5: Solve for x
    x = 701,314,160,601.94/1,125,201.65
  6. Step 6: Final answer
    x = 623,278.65

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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.