Home / 853,896.87-1,280,799.14-433,161.81

Finding the Fourth Proportional to 853,896.87, 1,280,799.14 and 433,161.81

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Solution

The fourth proportional to 853,896.87, 1,280,799.14 and 433,161.81 is: 649,719.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,896.87 : 1,280,799.14 = 433,161.81 : x
  2. Step 2: Convert to fraction form
    853,896.87/1,280,799.14 = 433,161.81/x
  3. Step 3: Cross multiply
    853,896.87x = 1,280,799.14 × 433,161.81
  4. Step 4: Simplify right side
    853,896.87x = 554,793,271,563.03
  5. Step 5: Solve for x
    x = 554,793,271,563.03/853,896.87
  6. Step 6: Final answer
    x = 649,719.29

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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.