Home / 1,459,408.40-2,189,112.60-394,420.40

Finding the Fourth Proportional to 1,459,408.40, 2,189,112.60 and 394,420.40

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Solution

The fourth proportional to 1,459,408.40, 2,189,112.60 and 394,420.40 is: 591,630.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,459,408.40 : 2,189,112.60 = 394,420.40 : x
  2. Step 2: Convert to fraction form
    1,459,408.40/2,189,112.60 = 394,420.40/x
  3. Step 3: Cross multiply
    1,459,408.40x = 2,189,112.60 × 394,420.40
  4. Step 4: Simplify right side
    1,459,408.40x = 863,430,667,337.04
  5. Step 5: Solve for x
    x = 863,430,667,337.04/1,459,408.40
  6. Step 6: Final answer
    x = 591,630.60

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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.