Home / 1,384,289.10-2,076,433.65-978,381.90

Finding the Fourth Proportional to 1,384,289.10, 2,076,433.65 and 978,381.90

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Solution

The fourth proportional to 1,384,289.10, 2,076,433.65 and 978,381.90 is: 1,467,572.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,289.10 : 2,076,433.65 = 978,381.90 : x
  2. Step 2: Convert to fraction form
    1,384,289.10/2,076,433.65 = 978,381.90/x
  3. Step 3: Cross multiply
    1,384,289.10x = 2,076,433.65 × 978,381.90
  4. Step 4: Simplify right side
    1,384,289.10x = 2,031,545,099,710.94
  5. Step 5: Solve for x
    x = 2,031,545,099,710.94/1,384,289.10
  6. Step 6: Final answer
    x = 1,467,572.85

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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.