Home / 1,089,271.80-1,631,574.90-879,319.80

Finding the Fourth Proportional to 1,089,271.80, 1,631,574.90 and 879,319.80

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Solution

The fourth proportional to 1,089,271.80, 1,631,574.90 and 879,319.80 is: 1,317,096.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,271.80 : 1,631,574.90 = 879,319.80 : x
  2. Step 2: Convert to fraction form
    1,089,271.80/1,631,574.90 = 879,319.80/x
  3. Step 3: Cross multiply
    1,089,271.80x = 1,631,574.90 × 879,319.80
  4. Step 4: Simplify right side
    1,089,271.80x = 1,434,676,114,753.02
  5. Step 5: Solve for x
    x = 1,434,676,114,753.02/1,089,271.80
  6. Step 6: Final answer
    x = 1,317,096.54

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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.