Home / 1,207,827.80-1,667,173.26-778,106.36

Finding the Fourth Proportional to 1,207,827.80, 1,667,173.26 and 778,106.36

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Solution

The fourth proportional to 1,207,827.80, 1,667,173.26 and 778,106.36 is: 1,074,025.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,827.80 : 1,667,173.26 = 778,106.36 : x
  2. Step 2: Convert to fraction form
    1,207,827.80/1,667,173.26 = 778,106.36/x
  3. Step 3: Cross multiply
    1,207,827.80x = 1,667,173.26 × 778,106.36
  4. Step 4: Simplify right side
    1,207,827.80x = 1,297,238,116,827.93
  5. Step 5: Solve for x
    x = 1,297,238,116,827.93/1,207,827.80
  6. Step 6: Final answer
    x = 1,074,025.72

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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.