Home / 879,192.54-1,318,774.39-280,145.59

Finding the Fourth Proportional to 879,192.54, 1,318,774.39 and 280,145.59

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Solution

The fourth proportional to 879,192.54, 1,318,774.39 and 280,145.59 is: 420,213.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,192.54 : 1,318,774.39 = 280,145.59 : x
  2. Step 2: Convert to fraction form
    879,192.54/1,318,774.39 = 280,145.59/x
  3. Step 3: Cross multiply
    879,192.54x = 1,318,774.39 × 280,145.59
  4. Step 4: Simplify right side
    879,192.54x = 369,448,825,566.14
  5. Step 5: Solve for x
    x = 369,448,825,566.14/879,192.54
  6. Step 6: Final answer
    x = 420,213.79

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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.