Home / 788,738.78-1,183,307.67-220,119.78

Finding the Fourth Proportional to 788,738.78, 1,183,307.67 and 220,119.78

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Solution

The fourth proportional to 788,738.78, 1,183,307.67 and 220,119.78 is: 330,235.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,738.78 : 1,183,307.67 = 220,119.78 : x
  2. Step 2: Convert to fraction form
    788,738.78/1,183,307.67 = 220,119.78/x
  3. Step 3: Cross multiply
    788,738.78x = 1,183,307.67 × 220,119.78
  4. Step 4: Simplify right side
    788,738.78x = 260,469,423,992.71
  5. Step 5: Solve for x
    x = 260,469,423,992.71/788,738.78
  6. Step 6: Final answer
    x = 330,235.35

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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.