Home / 1,394,311.20-2,091,423.60-397,039.20

Finding the Fourth Proportional to 1,394,311.20, 2,091,423.60 and 397,039.20

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Solution

The fourth proportional to 1,394,311.20, 2,091,423.60 and 397,039.20 is: 595,546.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,311.20 : 2,091,423.60 = 397,039.20 : x
  2. Step 2: Convert to fraction form
    1,394,311.20/2,091,423.60 = 397,039.20/x
  3. Step 3: Cross multiply
    1,394,311.20x = 2,091,423.60 × 397,039.20
  4. Step 4: Simplify right side
    1,394,311.20x = 830,377,153,005.12
  5. Step 5: Solve for x
    x = 830,377,153,005.12/1,394,311.20
  6. Step 6: Final answer
    x = 595,546.50

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Double scale
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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.