Home / 1,424,861.04-1,966,352.64-780,342.36

Finding the Fourth Proportional to 1,424,861.04, 1,966,352.64 and 780,342.36

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Solution

The fourth proportional to 1,424,861.04, 1,966,352.64 and 780,342.36 is: 1,076,896.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,861.04 : 1,966,352.64 = 780,342.36 : x
  2. Step 2: Convert to fraction form
    1,424,861.04/1,966,352.64 = 780,342.36/x
  3. Step 3: Cross multiply
    1,424,861.04x = 1,966,352.64 × 780,342.36
  4. Step 4: Simplify right side
    1,424,861.04x = 1,534,428,259,689.83
  5. Step 5: Solve for x
    x = 1,534,428,259,689.83/1,424,861.04
  6. Step 6: Final answer
    x = 1,076,896.78

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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.