Home / 1,386,268.43-1,913,029.32-774,429.96

Finding the Fourth Proportional to 1,386,268.43, 1,913,029.32 and 774,429.96

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Solution

The fourth proportional to 1,386,268.43, 1,913,029.32 and 774,429.96 is: 1,068,701.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,268.43 : 1,913,029.32 = 774,429.96 : x
  2. Step 2: Convert to fraction form
    1,386,268.43/1,913,029.32 = 774,429.96/x
  3. Step 3: Cross multiply
    1,386,268.43x = 1,913,029.32 × 774,429.96
  4. Step 4: Simplify right side
    1,386,268.43x = 1,481,507,219,766.43
  5. Step 5: Solve for x
    x = 1,481,507,219,766.43/1,386,268.43
  6. Step 6: Final answer
    x = 1,068,701.55

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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.