Home / 1,296,430.60-1,788,860.26-723,469.40

Finding the Fourth Proportional to 1,296,430.60, 1,788,860.26 and 723,469.40

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Solution

The fourth proportional to 1,296,430.60, 1,788,860.26 and 723,469.40 is: 998,268.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,430.60 : 1,788,860.26 = 723,469.40 : x
  2. Step 2: Convert to fraction form
    1,296,430.60/1,788,860.26 = 723,469.40/x
  3. Step 3: Cross multiply
    1,296,430.60x = 1,788,860.26 × 723,469.40
  4. Step 4: Simplify right side
    1,296,430.60x = 1,294,185,658,986.04
  5. Step 5: Solve for x
    x = 1,294,185,658,986.04/1,296,430.60
  6. Step 6: Final answer
    x = 998,268.37

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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.