Home / 854,434.10-1,280,896.88-322,328.80

Finding the Fourth Proportional to 854,434.10, 1,280,896.88 and 322,328.80

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Solution

The fourth proportional to 854,434.10, 1,280,896.88 and 322,328.80 is: 483,208.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,434.10 : 1,280,896.88 = 322,328.80 : x
  2. Step 2: Convert to fraction form
    854,434.10/1,280,896.88 = 322,328.80/x
  3. Step 3: Cross multiply
    854,434.10x = 1,280,896.88 × 322,328.80
  4. Step 4: Simplify right side
    854,434.10x = 412,869,954,254.14
  5. Step 5: Solve for x
    x = 412,869,954,254.14/854,434.10
  6. Step 6: Final answer
    x = 483,208.66

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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.