Home / 1,319,697.20-1,979,351.40-373,163.60

Finding the Fourth Proportional to 1,319,697.20, 1,979,351.40 and 373,163.60

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Solution

The fourth proportional to 1,319,697.20, 1,979,351.40 and 373,163.60 is: 559,690.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,697.20 : 1,979,351.40 = 373,163.60 : x
  2. Step 2: Convert to fraction form
    1,319,697.20/1,979,351.40 = 373,163.60/x
  3. Step 3: Cross multiply
    1,319,697.20x = 1,979,351.40 × 373,163.60
  4. Step 4: Simplify right side
    1,319,697.20x = 738,621,894,089.04
  5. Step 5: Solve for x
    x = 738,621,894,089.04/1,319,697.20
  6. Step 6: Final answer
    x = 559,690.43

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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.