Home / 1,128,023.84-1,556,871.93-669,391.31

Finding the Fourth Proportional to 1,128,023.84, 1,556,871.93 and 669,391.31

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Solution

The fourth proportional to 1,128,023.84, 1,556,871.93 and 669,391.31 is: 923,878.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,023.84 : 1,556,871.93 = 669,391.31 : x
  2. Step 2: Convert to fraction form
    1,128,023.84/1,556,871.93 = 669,391.31/x
  3. Step 3: Cross multiply
    1,128,023.84x = 1,556,871.93 × 669,391.31
  4. Step 4: Simplify right side
    1,128,023.84x = 1,042,156,532,940.57
  5. Step 5: Solve for x
    x = 1,042,156,532,940.57/1,128,023.84
  6. Step 6: Final answer
    x = 923,878.11

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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.