Home / 839,058.20-1,258,587.30-389,629.70

Finding the Fourth Proportional to 839,058.20, 1,258,587.30 and 389,629.70

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Solution

The fourth proportional to 839,058.20, 1,258,587.30 and 389,629.70 is: 584,444.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,058.20 : 1,258,587.30 = 389,629.70 : x
  2. Step 2: Convert to fraction form
    839,058.20/1,258,587.30 = 389,629.70/x
  3. Step 3: Cross multiply
    839,058.20x = 1,258,587.30 × 389,629.70
  4. Step 4: Simplify right side
    839,058.20x = 490,382,992,122.81
  5. Step 5: Solve for x
    x = 490,382,992,122.81/839,058.20
  6. Step 6: Final answer
    x = 584,444.55

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Similar ratio
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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.