Home / 705,815.94-1,058,458.94-256,425.78

Finding the Fourth Proportional to 705,815.94, 1,058,458.94 and 256,425.78

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Solution

The fourth proportional to 705,815.94, 1,058,458.94 and 256,425.78 is: 384,542.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,815.94 : 1,058,458.94 = 256,425.78 : x
  2. Step 2: Convert to fraction form
    705,815.94/1,058,458.94 = 256,425.78/x
  3. Step 3: Cross multiply
    705,815.94x = 1,058,458.94 × 256,425.78
  4. Step 4: Simplify right side
    705,815.94x = 271,416,159,287.47
  5. Step 5: Solve for x
    x = 271,416,159,287.47/705,815.94
  6. Step 6: Final answer
    x = 384,542.41

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1.5x scale

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.