Home / 854,408.40-1,281,612.60-743,816.40

Finding the Fourth Proportional to 854,408.40, 1,281,612.60 and 743,816.40

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Solution

The fourth proportional to 854,408.40, 1,281,612.60 and 743,816.40 is: 1,115,724.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,408.40 : 1,281,612.60 = 743,816.40 : x
  2. Step 2: Convert to fraction form
    854,408.40/1,281,612.60 = 743,816.40/x
  3. Step 3: Cross multiply
    854,408.40x = 1,281,612.60 × 743,816.40
  4. Step 4: Simplify right side
    854,408.40x = 953,284,470,326.64
  5. Step 5: Solve for x
    x = 953,284,470,326.64/854,408.40
  6. Step 6: Final answer
    x = 1,115,724.60

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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.