Home / 1,256,003.80-1,884,120.90-414,557.40

Finding the Fourth Proportional to 1,256,003.80, 1,884,120.90 and 414,557.40

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Solution

The fourth proportional to 1,256,003.80, 1,884,120.90 and 414,557.40 is: 621,874.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,003.80 : 1,884,120.90 = 414,557.40 : x
  2. Step 2: Convert to fraction form
    1,256,003.80/1,884,120.90 = 414,557.40/x
  3. Step 3: Cross multiply
    1,256,003.80x = 1,884,120.90 × 414,557.40
  4. Step 4: Simplify right side
    1,256,003.80x = 781,076,261,589.66
  5. Step 5: Solve for x
    x = 781,076,261,589.66/1,256,003.80
  6. Step 6: Final answer
    x = 621,874.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.