Home / 1,289,450.45-1,778,932.25-745,486.61

Finding the Fourth Proportional to 1,289,450.45, 1,778,932.25 and 745,486.61

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Solution

The fourth proportional to 1,289,450.45, 1,778,932.25 and 745,486.61 is: 1,028,477.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,450.45 : 1,778,932.25 = 745,486.61 : x
  2. Step 2: Convert to fraction form
    1,289,450.45/1,778,932.25 = 745,486.61/x
  3. Step 3: Cross multiply
    1,289,450.45x = 1,778,932.25 × 745,486.61
  4. Step 4: Simplify right side
    1,289,450.45x = 1,326,170,168,744.74
  5. Step 5: Solve for x
    x = 1,326,170,168,744.74/1,289,450.45
  6. Step 6: Final answer
    x = 1,028,477.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.