Home / 1,424,840.47-1,966,220.78-780,249.56

Finding the Fourth Proportional to 1,424,840.47, 1,966,220.78 and 780,249.56

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Solution

The fourth proportional to 1,424,840.47, 1,966,220.78 and 780,249.56 is: 1,076,712.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,840.47 : 1,966,220.78 = 780,249.56 : x
  2. Step 2: Convert to fraction form
    1,424,840.47/1,966,220.78 = 780,249.56/x
  3. Step 3: Cross multiply
    1,424,840.47x = 1,966,220.78 × 780,249.56
  4. Step 4: Simplify right side
    1,424,840.47x = 1,534,142,884,725.51
  5. Step 5: Solve for x
    x = 1,534,142,884,725.51/1,424,840.47
  6. Step 6: Final answer
    x = 1,076,712.04

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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.