Home / 1,319,063.20-1,978,400.40-372,529.60

Finding the Fourth Proportional to 1,319,063.20, 1,978,400.40 and 372,529.60

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Solution

The fourth proportional to 1,319,063.20, 1,978,400.40 and 372,529.60 is: 558,739.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,063.20 : 1,978,400.40 = 372,529.60 : x
  2. Step 2: Convert to fraction form
    1,319,063.20/1,978,400.40 = 372,529.60/x
  3. Step 3: Cross multiply
    1,319,063.20x = 1,978,400.40 × 372,529.60
  4. Step 4: Simplify right side
    1,319,063.20x = 737,012,709,651.84
  5. Step 5: Solve for x
    x = 737,012,709,651.84/1,319,063.20
  6. Step 6: Final answer
    x = 558,739.50

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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.