Home / 1,020,439.80-1,532,409.30-667,020.60

Finding the Fourth Proportional to 1,020,439.80, 1,532,409.30 and 667,020.60

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Solution

The fourth proportional to 1,020,439.80, 1,532,409.30 and 667,020.60 is: 1,001,674.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,439.80 : 1,532,409.30 = 667,020.60 : x
  2. Step 2: Convert to fraction form
    1,020,439.80/1,532,409.30 = 667,020.60/x
  3. Step 3: Cross multiply
    1,020,439.80x = 1,532,409.30 × 667,020.60
  4. Step 4: Simplify right side
    1,020,439.80x = 1,022,148,570,731.58
  5. Step 5: Solve for x
    x = 1,022,148,570,731.58/1,020,439.80
  6. Step 6: Final answer
    x = 1,001,674.54

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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.