Home / 1,089,632.40-1,631,338.20-965,216.40

Finding the Fourth Proportional to 1,089,632.40, 1,631,338.20 and 965,216.40

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Solution

The fourth proportional to 1,089,632.40, 1,631,338.20 and 965,216.40 is: 1,445,069.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,632.40 : 1,631,338.20 = 965,216.40 : x
  2. Step 2: Convert to fraction form
    1,089,632.40/1,631,338.20 = 965,216.40/x
  3. Step 3: Cross multiply
    1,089,632.40x = 1,631,338.20 × 965,216.40
  4. Step 4: Simplify right side
    1,089,632.40x = 1,574,594,384,586.48
  5. Step 5: Solve for x
    x = 1,574,594,384,586.48/1,089,632.40
  6. Step 6: Final answer
    x = 1,445,069.35

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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.