Home / 879,454.26-1,319,255.37-280,500.57

Finding the Fourth Proportional to 879,454.26, 1,319,255.37 and 280,500.57

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Solution

The fourth proportional to 879,454.26, 1,319,255.37 and 280,500.57 is: 420,774.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,454.26 : 1,319,255.37 = 280,500.57 : x
  2. Step 2: Convert to fraction form
    879,454.26/1,319,255.37 = 280,500.57/x
  3. Step 3: Cross multiply
    879,454.26x = 1,319,255.37 × 280,500.57
  4. Step 4: Simplify right side
    879,454.26x = 370,051,883,260.56
  5. Step 5: Solve for x
    x = 370,051,883,260.56/879,454.26
  6. Step 6: Final answer
    x = 420,774.45

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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.