Home / 1,424,659.20-1,966,029.46-780,079.28

Finding the Fourth Proportional to 1,424,659.20, 1,966,029.46 and 780,079.28

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Solution

The fourth proportional to 1,424,659.20, 1,966,029.46 and 780,079.28 is: 1,076,509.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,659.20 : 1,966,029.46 = 780,079.28 : x
  2. Step 2: Convert to fraction form
    1,424,659.20/1,966,029.46 = 780,079.28/x
  3. Step 3: Cross multiply
    1,424,659.20x = 1,966,029.46 × 780,079.28
  4. Step 4: Simplify right side
    1,424,659.20x = 1,533,658,845,615.59
  5. Step 5: Solve for x
    x = 1,533,658,845,615.59/1,424,659.20
  6. Step 6: Final answer
    x = 1,076,509.28

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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.