Home / 1,384,140.80-2,076,211.20-911,748.80

Finding the Fourth Proportional to 1,384,140.80, 2,076,211.20 and 911,748.80

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Solution

The fourth proportional to 1,384,140.80, 2,076,211.20 and 911,748.80 is: 1,367,623.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,140.80 : 2,076,211.20 = 911,748.80 : x
  2. Step 2: Convert to fraction form
    1,384,140.80/2,076,211.20 = 911,748.80/x
  3. Step 3: Cross multiply
    1,384,140.80x = 2,076,211.20 × 911,748.80
  4. Step 4: Simplify right side
    1,384,140.80x = 1,892,983,070,146.56
  5. Step 5: Solve for x
    x = 1,892,983,070,146.56/1,384,140.80
  6. Step 6: Final answer
    x = 1,367,623.20

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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.