Home / 1,367,865.16-2,052,020.71-421,235.88

Finding the Fourth Proportional to 1,367,865.16, 2,052,020.71 and 421,235.88

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Solution

The fourth proportional to 1,367,865.16, 2,052,020.71 and 421,235.88 is: 631,922.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367,865.16 : 2,052,020.71 = 421,235.88 : x
  2. Step 2: Convert to fraction form
    1,367,865.16/2,052,020.71 = 421,235.88/x
  3. Step 3: Cross multiply
    1,367,865.16x = 2,052,020.71 × 421,235.88
  4. Step 4: Simplify right side
    1,367,865.16x = 864,384,742,386.54
  5. Step 5: Solve for x
    x = 864,384,742,386.54/1,367,865.16
  6. Step 6: Final answer
    x = 631,922.48

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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.