Home / 921,229.58-1,271,391.42-553,825.66

Finding the Fourth Proportional to 921,229.58, 1,271,391.42 and 553,825.66

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Solution

The fourth proportional to 921,229.58, 1,271,391.42 and 553,825.66 is: 764,336.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,229.58 : 1,271,391.42 = 553,825.66 : x
  2. Step 2: Convert to fraction form
    921,229.58/1,271,391.42 = 553,825.66/x
  3. Step 3: Cross multiply
    921,229.58x = 1,271,391.42 × 553,825.66
  4. Step 4: Simplify right side
    921,229.58x = 704,129,192,299.84
  5. Step 5: Solve for x
    x = 704,129,192,299.84/921,229.58
  6. Step 6: Final answer
    x = 764,336.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.