Home / 854,430.75-1,280,891.87-322,325.45

Finding the Fourth Proportional to 854,430.75, 1,280,891.87 and 322,325.45

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Solution

The fourth proportional to 854,430.75, 1,280,891.87 and 322,325.45 is: 483,203.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,430.75 : 1,280,891.87 = 322,325.45 : x
  2. Step 2: Convert to fraction form
    854,430.75/1,280,891.87 = 322,325.45/x
  3. Step 3: Cross multiply
    854,430.75x = 1,280,891.87 × 322,325.45
  4. Step 4: Simplify right side
    854,430.75x = 412,864,041,994.63
  5. Step 5: Solve for x
    x = 412,864,041,994.63/854,430.75
  6. Step 6: Final answer
    x = 483,203.64

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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.