Home / 679,540.01-1,018,391.40-300,396.22

Finding the Fourth Proportional to 679,540.01, 1,018,391.40 and 300,396.22

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Solution

The fourth proportional to 679,540.01, 1,018,391.40 and 300,396.22 is: 450,188.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,540.01 : 1,018,391.40 = 300,396.22 : x
  2. Step 2: Convert to fraction form
    679,540.01/1,018,391.40 = 300,396.22/x
  3. Step 3: Cross multiply
    679,540.01x = 1,018,391.40 × 300,396.22
  4. Step 4: Simplify right side
    679,540.01x = 305,920,924,494.53
  5. Step 5: Solve for x
    x = 305,920,924,494.53/679,540.01
  6. Step 6: Final answer
    x = 450,188.25

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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.