Home / 1,136,261.60-1,567,379.88-728,218.40

Finding the Fourth Proportional to 1,136,261.60, 1,567,379.88 and 728,218.40

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Solution

The fourth proportional to 1,136,261.60, 1,567,379.88 and 728,218.40 is: 1,004,517.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,261.60 : 1,567,379.88 = 728,218.40 : x
  2. Step 2: Convert to fraction form
    1,136,261.60/1,567,379.88 = 728,218.40/x
  3. Step 3: Cross multiply
    1,136,261.60x = 1,567,379.88 × 728,218.40
  4. Step 4: Simplify right side
    1,136,261.60x = 1,141,394,868,405.79
  5. Step 5: Solve for x
    x = 1,141,394,868,405.79/1,136,261.60
  6. Step 6: Final answer
    x = 1,004,517.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.