Home / 1,451,984.88-2,178,081-387,021.36

Finding the Fourth Proportional to 1,451,984.88, 2,178,081 and 387,021.36

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Solution

The fourth proportional to 1,451,984.88, 2,178,081 and 387,021.36 is: 580,559.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451,984.88 : 2,178,081 = 387,021.36 : x
  2. Step 2: Convert to fraction form
    1,451,984.88/2,178,081 = 387,021.36/x
  3. Step 3: Cross multiply
    1,451,984.88x = 2,178,081 × 387,021.36
  4. Step 4: Simplify right side
    1,451,984.88x = 842,963,870,810.16
  5. Step 5: Solve for x
    x = 842,963,870,810.16/1,451,984.88
  6. Step 6: Final answer
    x = 580,559.68

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Double scale
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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.