Home / 1,424,747.88-1,966,158.36-780,172.56

Finding the Fourth Proportional to 1,424,747.88, 1,966,158.36 and 780,172.56

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Solution

The fourth proportional to 1,424,747.88, 1,966,158.36 and 780,172.56 is: 1,076,641.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,747.88 : 1,966,158.36 = 780,172.56 : x
  2. Step 2: Convert to fraction form
    1,424,747.88/1,966,158.36 = 780,172.56/x
  3. Step 3: Cross multiply
    1,424,747.88x = 1,966,158.36 × 780,172.56
  4. Step 4: Simplify right side
    1,424,747.88x = 1,533,942,801,086.60
  5. Step 5: Solve for x
    x = 1,533,942,801,086.60/1,424,747.88
  6. Step 6: Final answer
    x = 1,076,641.57

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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.