Home / 1,089,223.49-1,632,340.55-689,148.07

Finding the Fourth Proportional to 1,089,223.49, 1,632,340.55 and 689,148.07

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Solution

The fourth proportional to 1,089,223.49, 1,632,340.55 and 689,148.07 is: 1,032,776.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,223.49 : 1,632,340.55 = 689,148.07 : x
  2. Step 2: Convert to fraction form
    1,089,223.49/1,632,340.55 = 689,148.07/x
  3. Step 3: Cross multiply
    1,089,223.49x = 1,632,340.55 × 689,148.07
  4. Step 4: Simplify right side
    1,089,223.49x = 1,124,924,337,257.26
  5. Step 5: Solve for x
    x = 1,124,924,337,257.26/1,089,223.49
  6. Step 6: Final answer
    x = 1,032,776.42

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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.