Home / 879,813.28-1,319,742.83-280,773.64

Finding the Fourth Proportional to 879,813.28, 1,319,742.83 and 280,773.64

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Solution

The fourth proportional to 879,813.28, 1,319,742.83 and 280,773.64 is: 421,167.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,813.28 : 1,319,742.83 = 280,773.64 : x
  2. Step 2: Convert to fraction form
    879,813.28/1,319,742.83 = 280,773.64/x
  3. Step 3: Cross multiply
    879,813.28x = 1,319,742.83 × 280,773.64
  4. Step 4: Simplify right side
    879,813.28x = 370,548,998,243.00
  5. Step 5: Solve for x
    x = 370,548,998,243.00/879,813.28
  6. Step 6: Final answer
    x = 421,167.77

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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.