Home / 1,424,938.88-1,966,421.94-780,363.56

Finding the Fourth Proportional to 1,424,938.88, 1,966,421.94 and 780,363.56

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Solution

The fourth proportional to 1,424,938.88, 1,966,421.94 and 780,363.56 is: 1,076,905.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,938.88 : 1,966,421.94 = 780,363.56 : x
  2. Step 2: Convert to fraction form
    1,424,938.88/1,966,421.94 = 780,363.56/x
  3. Step 3: Cross multiply
    1,424,938.88x = 1,966,421.94 × 780,363.56
  4. Step 4: Simplify right side
    1,424,938.88x = 1,534,524,025,560.51
  5. Step 5: Solve for x
    x = 1,534,524,025,560.51/1,424,938.88
  6. Step 6: Final answer
    x = 1,076,905.16

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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.