Home / 1,315,651.80-1,815,600.24-712,039.80

Finding the Fourth Proportional to 1,315,651.80, 1,815,600.24 and 712,039.80

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Solution

The fourth proportional to 1,315,651.80, 1,815,600.24 and 712,039.80 is: 982,615.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,651.80 : 1,815,600.24 = 712,039.80 : x
  2. Step 2: Convert to fraction form
    1,315,651.80/1,815,600.24 = 712,039.80/x
  3. Step 3: Cross multiply
    1,315,651.80x = 1,815,600.24 × 712,039.80
  4. Step 4: Simplify right side
    1,315,651.80x = 1,292,779,631,769.55
  5. Step 5: Solve for x
    x = 1,292,779,631,769.55/1,315,651.80
  6. Step 6: Final answer
    x = 982,615.33

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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.