Home / 1,200,460.45-1,656,688.49-691,326.85

Finding the Fourth Proportional to 1,200,460.45, 1,656,688.49 and 691,326.85

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Solution

The fourth proportional to 1,200,460.45, 1,656,688.49 and 691,326.85 is: 954,061.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,460.45 : 1,656,688.49 = 691,326.85 : x
  2. Step 2: Convert to fraction form
    1,200,460.45/1,656,688.49 = 691,326.85/x
  3. Step 3: Cross multiply
    1,200,460.45x = 1,656,688.49 × 691,326.85
  4. Step 4: Simplify right side
    1,200,460.45x = 1,145,313,232,809.55
  5. Step 5: Solve for x
    x = 1,145,313,232,809.55/1,200,460.45
  6. Step 6: Final answer
    x = 954,061.61

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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.