Home / 890,408.46-1,335,768.21-391,759.50

Finding the Fourth Proportional to 890,408.46, 1,335,768.21 and 391,759.50

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Solution

The fourth proportional to 890,408.46, 1,335,768.21 and 391,759.50 is: 587,707.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,408.46 : 1,335,768.21 = 391,759.50 : x
  2. Step 2: Convert to fraction form
    890,408.46/1,335,768.21 = 391,759.50/x
  3. Step 3: Cross multiply
    890,408.46x = 1,335,768.21 × 391,759.50
  4. Step 4: Simplify right side
    890,408.46x = 523,299,886,065.50
  5. Step 5: Solve for x
    x = 523,299,886,065.50/890,408.46
  6. Step 6: Final answer
    x = 587,707.68

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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.