Home / 1,384,121.80-2,076,182.70-437,782.60

Finding the Fourth Proportional to 1,384,121.80, 2,076,182.70 and 437,782.60

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Solution

The fourth proportional to 1,384,121.80, 2,076,182.70 and 437,782.60 is: 656,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,121.80 : 2,076,182.70 = 437,782.60 : x
  2. Step 2: Convert to fraction form
    1,384,121.80/2,076,182.70 = 437,782.60/x
  3. Step 3: Cross multiply
    1,384,121.80x = 2,076,182.70 × 437,782.60
  4. Step 4: Simplify right side
    1,384,121.80x = 908,916,660,481.02
  5. Step 5: Solve for x
    x = 908,916,660,481.02/1,384,121.80
  6. Step 6: Final answer
    x = 656,673.90

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1.5x scale

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.