Home / 1,384,997.20-2,076,329.40-720,149.20

Finding the Fourth Proportional to 1,384,997.20, 2,076,329.40 and 720,149.20

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Solution

The fourth proportional to 1,384,997.20, 2,076,329.40 and 720,149.20 is: 1,079,617.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,997.20 : 2,076,329.40 = 720,149.20 : x
  2. Step 2: Convert to fraction form
    1,384,997.20/2,076,329.40 = 720,149.20/x
  3. Step 3: Cross multiply
    1,384,997.20x = 2,076,329.40 × 720,149.20
  4. Step 4: Simplify right side
    1,384,997.20x = 1,495,266,956,346.48
  5. Step 5: Solve for x
    x = 1,495,266,956,346.48/1,384,997.20
  6. Step 6: Final answer
    x = 1,079,617.31

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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.