Home / 1,286,584.62-1,775,339.55-742,718.22

Finding the Fourth Proportional to 1,286,584.62, 1,775,339.55 and 742,718.22

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Solution

The fourth proportional to 1,286,584.62, 1,775,339.55 and 742,718.22 is: 1,024,866.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,584.62 : 1,775,339.55 = 742,718.22 : x
  2. Step 2: Convert to fraction form
    1,286,584.62/1,775,339.55 = 742,718.22/x
  3. Step 3: Cross multiply
    1,286,584.62x = 1,775,339.55 × 742,718.22
  4. Step 4: Simplify right side
    1,286,584.62x = 1,318,577,030,471.60
  5. Step 5: Solve for x
    x = 1,318,577,030,471.60/1,286,584.62
  6. Step 6: Final answer
    x = 1,024,866.15

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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.