Home / 879,456.40-1,317,629.40-745,709.20

Finding the Fourth Proportional to 879,456.40, 1,317,629.40 and 745,709.20

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Solution

The fourth proportional to 879,456.40, 1,317,629.40 and 745,709.20 is: 1,117,245.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,456.40 : 1,317,629.40 = 745,709.20 : x
  2. Step 2: Convert to fraction form
    879,456.40/1,317,629.40 = 745,709.20/x
  3. Step 3: Cross multiply
    879,456.40x = 1,317,629.40 × 745,709.20
  4. Step 4: Simplify right side
    879,456.40x = 982,568,365,770.48
  5. Step 5: Solve for x
    x = 982,568,365,770.48/879,456.40
  6. Step 6: Final answer
    x = 1,117,245.11

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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.