Home / 1,286,840.30-1,775,834.17-713,880.47

Finding the Fourth Proportional to 1,286,840.30, 1,775,834.17 and 713,880.47

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Solution

The fourth proportional to 1,286,840.30, 1,775,834.17 and 713,880.47 is: 985,152.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,840.30 : 1,775,834.17 = 713,880.47 : x
  2. Step 2: Convert to fraction form
    1,286,840.30/1,775,834.17 = 713,880.47/x
  3. Step 3: Cross multiply
    1,286,840.30x = 1,775,834.17 × 713,880.47
  4. Step 4: Simplify right side
    1,286,840.30x = 1,267,733,334,576.54
  5. Step 5: Solve for x
    x = 1,267,733,334,576.54/1,286,840.30
  6. Step 6: Final answer
    x = 985,152.03

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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.