Home / 1,315,893.36-1,815,930.84-712,283.76

Finding the Fourth Proportional to 1,315,893.36, 1,815,930.84 and 712,283.76

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Solution

The fourth proportional to 1,315,893.36, 1,815,930.84 and 712,283.76 is: 982,950.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,893.36 : 1,815,930.84 = 712,283.76 : x
  2. Step 2: Convert to fraction form
    1,315,893.36/1,815,930.84 = 712,283.76/x
  3. Step 3: Cross multiply
    1,315,893.36x = 1,815,930.84 × 712,283.76
  4. Step 4: Simplify right side
    1,315,893.36x = 1,293,458,046,615.16
  5. Step 5: Solve for x
    x = 1,293,458,046,615.16/1,315,893.36
  6. Step 6: Final answer
    x = 982,950.51

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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.