Home / 471,819.07-651,137.55-355,323.95

Finding the Fourth Proportional to 471,819.07, 651,137.55 and 355,323.95

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Solution

The fourth proportional to 471,819.07, 651,137.55 and 355,323.95 is: 490,367.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,819.07 : 651,137.55 = 355,323.95 : x
  2. Step 2: Convert to fraction form
    471,819.07/651,137.55 = 355,323.95/x
  3. Step 3: Cross multiply
    471,819.07x = 651,137.55 × 355,323.95
  4. Step 4: Simplify right side
    471,819.07x = 231,364,766,259.32
  5. Step 5: Solve for x
    x = 231,364,766,259.32/471,819.07
  6. Step 6: Final answer
    x = 490,367.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.