Home / 778,121.51-1,167,284.34-304,745.36

Finding the Fourth Proportional to 778,121.51, 1,167,284.34 and 304,745.36

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Solution

The fourth proportional to 778,121.51, 1,167,284.34 and 304,745.36 is: 457,158.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,121.51 : 1,167,284.34 = 304,745.36 : x
  2. Step 2: Convert to fraction form
    778,121.51/1,167,284.34 = 304,745.36/x
  3. Step 3: Cross multiply
    778,121.51x = 1,167,284.34 × 304,745.36
  4. Step 4: Simplify right side
    778,121.51x = 355,724,480,579.24
  5. Step 5: Solve for x
    x = 355,724,480,579.24/778,121.51
  6. Step 6: Final answer
    x = 457,158.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.