Home / 705,738.80-1,058,867.40-285,057.20

Finding the Fourth Proportional to 705,738.80, 1,058,867.40 and 285,057.20

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Solution

The fourth proportional to 705,738.80, 1,058,867.40 and 285,057.20 is: 427,690.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,738.80 : 1,058,867.40 = 285,057.20 : x
  2. Step 2: Convert to fraction form
    705,738.80/1,058,867.40 = 285,057.20/x
  3. Step 3: Cross multiply
    705,738.80x = 1,058,867.40 × 285,057.20
  4. Step 4: Simplify right side
    705,738.80x = 301,837,776,215.28
  5. Step 5: Solve for x
    x = 301,837,776,215.28/705,738.80
  6. Step 6: Final answer
    x = 427,690.49

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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.