Home / 1,089,319.49-1,630,823.85-820,579.44

Finding the Fourth Proportional to 1,089,319.49, 1,630,823.85 and 820,579.44

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Solution

The fourth proportional to 1,089,319.49, 1,630,823.85 and 820,579.44 is: 1,228,492.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,319.49 : 1,630,823.85 = 820,579.44 : x
  2. Step 2: Convert to fraction form
    1,089,319.49/1,630,823.85 = 820,579.44/x
  3. Step 3: Cross multiply
    1,089,319.49x = 1,630,823.85 × 820,579.44
  4. Step 4: Simplify right side
    1,089,319.49x = 1,338,220,516,235.04
  5. Step 5: Solve for x
    x = 1,338,220,516,235.04/1,089,319.49
  6. Step 6: Final answer
    x = 1,228,492.22

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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.