Home / 1,424,661.20-1,966,032.22-780,081.28

Finding the Fourth Proportional to 1,424,661.20, 1,966,032.22 and 780,081.28

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Solution

The fourth proportional to 1,424,661.20, 1,966,032.22 and 780,081.28 is: 1,076,512.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,661.20 : 1,966,032.22 = 780,081.28 : x
  2. Step 2: Convert to fraction form
    1,424,661.20/1,966,032.22 = 780,081.28/x
  3. Step 3: Cross multiply
    1,424,661.20x = 1,966,032.22 × 780,081.28
  4. Step 4: Simplify right side
    1,424,661.20x = 1,533,664,930,698.84
  5. Step 5: Solve for x
    x = 1,533,664,930,698.84/1,424,661.20
  6. Step 6: Final answer
    x = 1,076,512.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.