Home / 705,813.94-1,058,455.95-256,423.78

Finding the Fourth Proportional to 705,813.94, 1,058,455.95 and 256,423.78

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Solution

The fourth proportional to 705,813.94, 1,058,455.95 and 256,423.78 is: 384,539.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,813.94 : 1,058,455.95 = 256,423.78 : x
  2. Step 2: Convert to fraction form
    705,813.94/1,058,455.95 = 256,423.78/x
  3. Step 3: Cross multiply
    705,813.94x = 1,058,455.95 × 256,423.78
  4. Step 4: Simplify right side
    705,813.94x = 271,413,275,662.49
  5. Step 5: Solve for x
    x = 271,413,275,662.49/705,813.94
  6. Step 6: Final answer
    x = 384,539.41

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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.