Home / 1,384,992.70-2,076,322.65-720,144.70

Finding the Fourth Proportional to 1,384,992.70, 2,076,322.65 and 720,144.70

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Solution

The fourth proportional to 1,384,992.70, 2,076,322.65 and 720,144.70 is: 1,079,610.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,992.70 : 2,076,322.65 = 720,144.70 : x
  2. Step 2: Convert to fraction form
    1,384,992.70/2,076,322.65 = 720,144.70/x
  3. Step 3: Cross multiply
    1,384,992.70x = 2,076,322.65 × 720,144.70
  4. Step 4: Simplify right side
    1,384,992.70x = 1,495,252,751,887.45
  5. Step 5: Solve for x
    x = 1,495,252,751,887.45/1,384,992.70
  6. Step 6: Final answer
    x = 1,079,610.57

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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.