Home / 1,664,609.65-2,489,701.33-979,864.60

Finding the Fourth Proportional to 1,664,609.65, 2,489,701.33 and 979,864.60

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Solution

The fourth proportional to 1,664,609.65, 2,489,701.33 and 979,864.60 is: 1,465,550.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664,609.65 : 2,489,701.33 = 979,864.60 : x
  2. Step 2: Convert to fraction form
    1,664,609.65/2,489,701.33 = 979,864.60/x
  3. Step 3: Cross multiply
    1,664,609.65x = 2,489,701.33 × 979,864.60
  4. Step 4: Simplify right side
    1,664,609.65x = 2,439,570,197,839.92
  5. Step 5: Solve for x
    x = 2,439,570,197,839.92/1,664,609.65
  6. Step 6: Final answer
    x = 1,465,550.92

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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.