Home / 879,584.40-1,319,376.60-280,589.40

Finding the Fourth Proportional to 879,584.40, 1,319,376.60 and 280,589.40

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Solution

The fourth proportional to 879,584.40, 1,319,376.60 and 280,589.40 is: 420,884.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,584.40 : 1,319,376.60 = 280,589.40 : x
  2. Step 2: Convert to fraction form
    879,584.40/1,319,376.60 = 280,589.40/x
  3. Step 3: Cross multiply
    879,584.40x = 1,319,376.60 × 280,589.40
  4. Step 4: Simplify right side
    879,584.40x = 370,203,088,568.04
  5. Step 5: Solve for x
    x = 370,203,088,568.04/879,584.40
  6. Step 6: Final answer
    x = 420,884.10

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1.5x scale

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.