Home / 1,214,816-1,676,549.76-678,375.68

Finding the Fourth Proportional to 1,214,816, 1,676,549.76 and 678,375.68

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Solution

The fourth proportional to 1,214,816, 1,676,549.76 and 678,375.68 is: 936,216.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,816 : 1,676,549.76 = 678,375.68 : x
  2. Step 2: Convert to fraction form
    1,214,816/1,676,549.76 = 678,375.68/x
  3. Step 3: Cross multiply
    1,214,816x = 1,676,549.76 × 678,375.68
  4. Step 4: Simplify right side
    1,214,816x = 1,137,330,583,493.84
  5. Step 5: Solve for x
    x = 1,137,330,583,493.84/1,214,816
  6. Step 6: Final answer
    x = 936,216.34

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1.5x scale

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.