Home / 1,286,429.36-1,775,381.46-713,654

Finding the Fourth Proportional to 1,286,429.36, 1,775,381.46 and 713,654

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Solution

The fourth proportional to 1,286,429.36, 1,775,381.46 and 713,654 is: 984,902.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,429.36 : 1,775,381.46 = 713,654 : x
  2. Step 2: Convert to fraction form
    1,286,429.36/1,775,381.46 = 713,654/x
  3. Step 3: Cross multiply
    1,286,429.36x = 1,775,381.46 × 713,654
  4. Step 4: Simplify right side
    1,286,429.36x = 1,267,008,080,454.84
  5. Step 5: Solve for x
    x = 1,267,008,080,454.84/1,286,429.36
  6. Step 6: Final answer
    x = 984,902.96

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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.