Home / 921,945.22-1,382,416.64-415,913.52

Finding the Fourth Proportional to 921,945.22, 1,382,416.64 and 415,913.52

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Solution

The fourth proportional to 921,945.22, 1,382,416.64 and 415,913.52 is: 623,644.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,945.22 : 1,382,416.64 = 415,913.52 : x
  2. Step 2: Convert to fraction form
    921,945.22/1,382,416.64 = 415,913.52/x
  3. Step 3: Cross multiply
    921,945.22x = 1,382,416.64 × 415,913.52
  4. Step 4: Simplify right side
    921,945.22x = 574,965,770,848.97
  5. Step 5: Solve for x
    x = 574,965,770,848.97/921,945.22
  6. Step 6: Final answer
    x = 623,644.18

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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.