Home / 1,384,991.70-2,076,321.15-720,143.70

Finding the Fourth Proportional to 1,384,991.70, 2,076,321.15 and 720,143.70

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Solution

The fourth proportional to 1,384,991.70, 2,076,321.15 and 720,143.70 is: 1,079,609.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,991.70 : 2,076,321.15 = 720,143.70 : x
  2. Step 2: Convert to fraction form
    1,384,991.70/2,076,321.15 = 720,143.70/x
  3. Step 3: Cross multiply
    1,384,991.70x = 2,076,321.15 × 720,143.70
  4. Step 4: Simplify right side
    1,384,991.70x = 1,495,249,595,349.26
  5. Step 5: Solve for x
    x = 1,495,249,595,349.26/1,384,991.70
  6. Step 6: Final answer
    x = 1,079,609.07

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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.