Home / 1,909,308.60-2,863,898.10-489,378.60

Finding the Fourth Proportional to 1,909,308.60, 2,863,898.10 and 489,378.60

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Solution

The fourth proportional to 1,909,308.60, 2,863,898.10 and 489,378.60 is: 734,051.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909,308.60 : 2,863,898.10 = 489,378.60 : x
  2. Step 2: Convert to fraction form
    1,909,308.60/2,863,898.10 = 489,378.60/x
  3. Step 3: Cross multiply
    1,909,308.60x = 2,863,898.10 × 489,378.60
  4. Step 4: Simplify right side
    1,909,308.60x = 1,401,530,442,720.66
  5. Step 5: Solve for x
    x = 1,401,530,442,720.66/1,909,308.60
  6. Step 6: Final answer
    x = 734,051.29

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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.