Home / 1,255,408.20-1,883,112.30-456,715.80

Finding the Fourth Proportional to 1,255,408.20, 1,883,112.30 and 456,715.80

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Solution

The fourth proportional to 1,255,408.20, 1,883,112.30 and 456,715.80 is: 685,073.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,408.20 : 1,883,112.30 = 456,715.80 : x
  2. Step 2: Convert to fraction form
    1,255,408.20/1,883,112.30 = 456,715.80/x
  3. Step 3: Cross multiply
    1,255,408.20x = 1,883,112.30 × 456,715.80
  4. Step 4: Simplify right side
    1,255,408.20x = 860,047,140,584.34
  5. Step 5: Solve for x
    x = 860,047,140,584.34/1,255,408.20
  6. Step 6: Final answer
    x = 685,073.70

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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.