Home / 1,079,349.93-1,618,729.34-405,379.10

Finding the Fourth Proportional to 1,079,349.93, 1,618,729.34 and 405,379.10

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Solution

The fourth proportional to 1,079,349.93, 1,618,729.34 and 405,379.10 is: 607,957.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,349.93 : 1,618,729.34 = 405,379.10 : x
  2. Step 2: Convert to fraction form
    1,079,349.93/1,618,729.34 = 405,379.10/x
  3. Step 3: Cross multiply
    1,079,349.93x = 1,618,729.34 × 405,379.10
  4. Step 4: Simplify right side
    1,079,349.93x = 656,199,032,872.25
  5. Step 5: Solve for x
    x = 656,199,032,872.25/1,079,349.93
  6. Step 6: Final answer
    x = 607,957.64

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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.