Home / 1,369,320.56-1,889,651.40-765,708.56

Finding the Fourth Proportional to 1,369,320.56, 1,889,651.40 and 765,708.56

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Solution

The fourth proportional to 1,369,320.56, 1,889,651.40 and 765,708.56 is: 1,056,671.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,320.56 : 1,889,651.40 = 765,708.56 : x
  2. Step 2: Convert to fraction form
    1,369,320.56/1,889,651.40 = 765,708.56/x
  3. Step 3: Cross multiply
    1,369,320.56x = 1,889,651.40 × 765,708.56
  4. Step 4: Simplify right side
    1,369,320.56x = 1,446,922,252,395.98
  5. Step 5: Solve for x
    x = 1,446,922,252,395.98/1,369,320.56
  6. Step 6: Final answer
    x = 1,056,671.68

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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.