Home / 1,328,794.20-1,992,932.10-430,018.20

Finding the Fourth Proportional to 1,328,794.20, 1,992,932.10 and 430,018.20

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Solution

The fourth proportional to 1,328,794.20, 1,992,932.10 and 430,018.20 is: 644,943.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,794.20 : 1,992,932.10 = 430,018.20 : x
  2. Step 2: Convert to fraction form
    1,328,794.20/1,992,932.10 = 430,018.20/x
  3. Step 3: Cross multiply
    1,328,794.20x = 1,992,932.10 × 430,018.20
  4. Step 4: Simplify right side
    1,328,794.20x = 856,997,074,364.22
  5. Step 5: Solve for x
    x = 856,997,074,364.22/1,328,794.20
  6. Step 6: Final answer
    x = 644,943.42

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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.