Home / 1,328,552.10-1,993,022.55-429,840.90

Finding the Fourth Proportional to 1,328,552.10, 1,993,022.55 and 429,840.90

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Solution

The fourth proportional to 1,328,552.10, 1,993,022.55 and 429,840.90 is: 644,824.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,552.10 : 1,993,022.55 = 429,840.90 : x
  2. Step 2: Convert to fraction form
    1,328,552.10/1,993,022.55 = 429,840.90/x
  3. Step 3: Cross multiply
    1,328,552.10x = 1,993,022.55 × 429,840.90
  4. Step 4: Simplify right side
    1,328,552.10x = 856,682,606,612.30
  5. Step 5: Solve for x
    x = 856,682,606,612.30/1,328,552.10
  6. Step 6: Final answer
    x = 644,824.25

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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.