Home / 1,909,329.60-2,863,929.60-489,399.60

Finding the Fourth Proportional to 1,909,329.60, 2,863,929.60 and 489,399.60

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Solution

The fourth proportional to 1,909,329.60, 2,863,929.60 and 489,399.60 is: 734,082.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909,329.60 : 2,863,929.60 = 489,399.60 : x
  2. Step 2: Convert to fraction form
    1,909,329.60/2,863,929.60 = 489,399.60/x
  3. Step 3: Cross multiply
    1,909,329.60x = 2,863,929.60 × 489,399.60
  4. Step 4: Simplify right side
    1,909,329.60x = 1,401,606,000,668.16
  5. Step 5: Solve for x
    x = 1,401,606,000,668.16/1,909,329.60
  6. Step 6: Final answer
    x = 734,082.79

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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.