Home / 1,213,285.20-1,819,927.80-326,821.20

Finding the Fourth Proportional to 1,213,285.20, 1,819,927.80 and 326,821.20

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Solution

The fourth proportional to 1,213,285.20, 1,819,927.80 and 326,821.20 is: 490,231.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,285.20 : 1,819,927.80 = 326,821.20 : x
  2. Step 2: Convert to fraction form
    1,213,285.20/1,819,927.80 = 326,821.20/x
  3. Step 3: Cross multiply
    1,213,285.20x = 1,819,927.80 × 326,821.20
  4. Step 4: Simplify right side
    1,213,285.20x = 594,790,987,509.36
  5. Step 5: Solve for x
    x = 594,790,987,509.36/1,213,285.20
  6. Step 6: Final answer
    x = 490,231.80

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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.