Home / 1,286,319.22-1,775,059.72-713,347.09

Finding the Fourth Proportional to 1,286,319.22, 1,775,059.72 and 713,347.09

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Solution

The fourth proportional to 1,286,319.22, 1,775,059.72 and 713,347.09 is: 984,385.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,319.22 : 1,775,059.72 = 713,347.09 : x
  2. Step 2: Convert to fraction form
    1,286,319.22/1,775,059.72 = 713,347.09/x
  3. Step 3: Cross multiply
    1,286,319.22x = 1,775,059.72 × 713,347.09
  4. Step 4: Simplify right side
    1,286,319.22x = 1,266,233,685,838.21
  5. Step 5: Solve for x
    x = 1,266,233,685,838.21/1,286,319.22
  6. Step 6: Final answer
    x = 984,385.26

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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.