Home / 448,058.40-672,087.60-298,759.20

Finding the Fourth Proportional to 448,058.40, 672,087.60 and 298,759.20

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Solution

The fourth proportional to 448,058.40, 672,087.60 and 298,759.20 is: 448,138.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,058.40 : 672,087.60 = 298,759.20 : x
  2. Step 2: Convert to fraction form
    448,058.40/672,087.60 = 298,759.20/x
  3. Step 3: Cross multiply
    448,058.40x = 672,087.60 × 298,759.20
  4. Step 4: Simplify right side
    448,058.40x = 200,792,353,705.92
  5. Step 5: Solve for x
    x = 200,792,353,705.92/448,058.40
  6. Step 6: Final answer
    x = 448,138.80

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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.