Home / 1,380,120.60-2,070,180.90-382,848.60

Finding the Fourth Proportional to 1,380,120.60, 2,070,180.90 and 382,848.60

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Solution

The fourth proportional to 1,380,120.60, 2,070,180.90 and 382,848.60 is: 574,272.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,120.60 : 2,070,180.90 = 382,848.60 : x
  2. Step 2: Convert to fraction form
    1,380,120.60/2,070,180.90 = 382,848.60/x
  3. Step 3: Cross multiply
    1,380,120.60x = 2,070,180.90 × 382,848.60
  4. Step 4: Simplify right side
    1,380,120.60x = 792,565,859,311.74
  5. Step 5: Solve for x
    x = 792,565,859,311.74/1,380,120.60
  6. Step 6: Final answer
    x = 574,272.90

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Double scale
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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.