Home / 854,435.94-1,280,532.72-628,739.58

Finding the Fourth Proportional to 854,435.94, 1,280,532.72 and 628,739.58

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Solution

The fourth proportional to 854,435.94, 1,280,532.72 and 628,739.58 is: 942,284.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,435.94 : 1,280,532.72 = 628,739.58 : x
  2. Step 2: Convert to fraction form
    854,435.94/1,280,532.72 = 628,739.58/x
  3. Step 3: Cross multiply
    854,435.94x = 1,280,532.72 × 628,739.58
  4. Step 4: Simplify right side
    854,435.94x = 805,121,604,549.06
  5. Step 5: Solve for x
    x = 805,121,604,549.06/854,435.94
  6. Step 6: Final answer
    x = 942,284.34

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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.