Home / 1,392,258.80-2,088,388.20-445,725.20

Finding the Fourth Proportional to 1,392,258.80, 2,088,388.20 and 445,725.20

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Solution

The fourth proportional to 1,392,258.80, 2,088,388.20 and 445,725.20 is: 668,587.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,258.80 : 2,088,388.20 = 445,725.20 : x
  2. Step 2: Convert to fraction form
    1,392,258.80/2,088,388.20 = 445,725.20/x
  3. Step 3: Cross multiply
    1,392,258.80x = 2,088,388.20 × 445,725.20
  4. Step 4: Simplify right side
    1,392,258.80x = 930,847,248,122.64
  5. Step 5: Solve for x
    x = 930,847,248,122.64/1,392,258.80
  6. Step 6: Final answer
    x = 668,587.80

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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.