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Finding the Fourth Proportional to 481,986.70, 722,980.05 and 405,004.30

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Solution

The fourth proportional to 481,986.70, 722,980.05 and 405,004.30 is: 607,506.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,986.70 : 722,980.05 = 405,004.30 : x
  2. Step 2: Convert to fraction form
    481,986.70/722,980.05 = 405,004.30/x
  3. Step 3: Cross multiply
    481,986.70x = 722,980.05 × 405,004.30
  4. Step 4: Simplify right side
    481,986.70x = 292,810,029,064.22
  5. Step 5: Solve for x
    x = 292,810,029,064.22/481,986.70
  6. Step 6: Final answer
    x = 607,506.45

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Similar ratio
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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.