Home / 1,424,933.88-1,966,415.04-780,358.56

Finding the Fourth Proportional to 1,424,933.88, 1,966,415.04 and 780,358.56

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Solution

The fourth proportional to 1,424,933.88, 1,966,415.04 and 780,358.56 is: 1,076,898.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,933.88 : 1,966,415.04 = 780,358.56 : x
  2. Step 2: Convert to fraction form
    1,424,933.88/1,966,415.04 = 780,358.56/x
  3. Step 3: Cross multiply
    1,424,933.88x = 1,966,415.04 × 780,358.56
  4. Step 4: Simplify right side
    1,424,933.88x = 1,534,508,808,976.74
  5. Step 5: Solve for x
    x = 1,534,508,808,976.74/1,424,933.88
  6. Step 6: Final answer
    x = 1,076,898.26

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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.