Home / 1,295,078.32-1,787,908.77-778,947.44

Finding the Fourth Proportional to 1,295,078.32, 1,787,908.77 and 778,947.44

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Solution

The fourth proportional to 1,295,078.32, 1,787,908.77 and 778,947.44 is: 1,075,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,078.32 : 1,787,908.77 = 778,947.44 : x
  2. Step 2: Convert to fraction form
    1,295,078.32/1,787,908.77 = 778,947.44/x
  3. Step 3: Cross multiply
    1,295,078.32x = 1,787,908.77 × 778,947.44
  4. Step 4: Simplify right side
    1,295,078.32x = 1,392,686,952,596.29
  5. Step 5: Solve for x
    x = 1,392,686,952,596.29/1,295,078.32
  6. Step 6: Final answer
    x = 1,075,368.90

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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.