Home / 1,384,385.40-2,076,578.10-911,604.60

Finding the Fourth Proportional to 1,384,385.40, 2,076,578.10 and 911,604.60

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Solution

The fourth proportional to 1,384,385.40, 2,076,578.10 and 911,604.60 is: 1,367,406.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,385.40 : 2,076,578.10 = 911,604.60 : x
  2. Step 2: Convert to fraction form
    1,384,385.40/2,076,578.10 = 911,604.60/x
  3. Step 3: Cross multiply
    1,384,385.40x = 2,076,578.10 × 911,604.60
  4. Step 4: Simplify right side
    1,384,385.40x = 1,893,018,148,219.26
  5. Step 5: Solve for x
    x = 1,893,018,148,219.26/1,384,385.40
  6. Step 6: Final answer
    x = 1,367,406.90

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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.