Home / 879,551.28-1,319,541.84-280,512.54

Finding the Fourth Proportional to 879,551.28, 1,319,541.84 and 280,512.54

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Solution

The fourth proportional to 879,551.28, 1,319,541.84 and 280,512.54 is: 420,837.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,551.28 : 1,319,541.84 = 280,512.54 : x
  2. Step 2: Convert to fraction form
    879,551.28/1,319,541.84 = 280,512.54/x
  3. Step 3: Cross multiply
    879,551.28x = 1,319,541.84 × 280,512.54
  4. Step 4: Simplify right side
    879,551.28x = 370,148,033,174.67
  5. Step 5: Solve for x
    x = 370,148,033,174.67/879,551.28
  6. Step 6: Final answer
    x = 420,837.35

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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.