Home / 679,222.26-1,019,046.69-280,051.02

Finding the Fourth Proportional to 679,222.26, 1,019,046.69 and 280,051.02

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Solution

The fourth proportional to 679,222.26, 1,019,046.69 and 280,051.02 is: 420,164.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,222.26 : 1,019,046.69 = 280,051.02 : x
  2. Step 2: Convert to fraction form
    679,222.26/1,019,046.69 = 280,051.02/x
  3. Step 3: Cross multiply
    679,222.26x = 1,019,046.69 × 280,051.02
  4. Step 4: Simplify right side
    679,222.26x = 285,385,064,962.12
  5. Step 5: Solve for x
    x = 285,385,064,962.12/679,222.26
  6. Step 6: Final answer
    x = 420,164.48

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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.