Home / 1,207,680.48-1,668,299.76-1,143,907.56

Finding the Fourth Proportional to 1,207,680.48, 1,668,299.76 and 1,143,907.56

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Solution

The fourth proportional to 1,207,680.48, 1,668,299.76 and 1,143,907.56 is: 1,580,203.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,680.48 : 1,668,299.76 = 1,143,907.56 : x
  2. Step 2: Convert to fraction form
    1,207,680.48/1,668,299.76 = 1,143,907.56/x
  3. Step 3: Cross multiply
    1,207,680.48x = 1,668,299.76 × 1,143,907.56
  4. Step 4: Simplify right side
    1,207,680.48x = 1,908,380,707,810.19
  5. Step 5: Solve for x
    x = 1,908,380,707,810.19/1,207,680.48
  6. Step 6: Final answer
    x = 1,580,203.32

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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.