Home / 858,907.40-1,286,805.90-734,491.40

Finding the Fourth Proportional to 858,907.40, 1,286,805.90 and 734,491.40

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Solution

The fourth proportional to 858,907.40, 1,286,805.90 and 734,491.40 is: 1,100,407.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,907.40 : 1,286,805.90 = 734,491.40 : x
  2. Step 2: Convert to fraction form
    858,907.40/1,286,805.90 = 734,491.40/x
  3. Step 3: Cross multiply
    858,907.40x = 1,286,805.90 × 734,491.40
  4. Step 4: Simplify right side
    858,907.40x = 945,147,867,019.26
  5. Step 5: Solve for x
    x = 945,147,867,019.26/858,907.40
  6. Step 6: Final answer
    x = 1,100,407.18

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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.