Home / 1,556,172.84-2,147,475.72-867,865.64

Finding the Fourth Proportional to 1,556,172.84, 2,147,475.72 and 867,865.64

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Solution

The fourth proportional to 1,556,172.84, 2,147,475.72 and 867,865.64 is: 1,197,630.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,172.84 : 2,147,475.72 = 867,865.64 : x
  2. Step 2: Convert to fraction form
    1,556,172.84/2,147,475.72 = 867,865.64/x
  3. Step 3: Cross multiply
    1,556,172.84x = 2,147,475.72 × 867,865.64
  4. Step 4: Simplify right side
    1,556,172.84x = 1,863,720,390,122.26
  5. Step 5: Solve for x
    x = 1,863,720,390,122.26/1,556,172.84
  6. Step 6: Final answer
    x = 1,197,630.71

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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.