Home / 1,207,429.86-1,808,155.34-886,821.43

Finding the Fourth Proportional to 1,207,429.86, 1,808,155.34 and 886,821.43

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Solution

The fourth proportional to 1,207,429.86, 1,808,155.34 and 886,821.43 is: 1,328,036.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,429.86 : 1,808,155.34 = 886,821.43 : x
  2. Step 2: Convert to fraction form
    1,207,429.86/1,808,155.34 = 886,821.43/x
  3. Step 3: Cross multiply
    1,207,429.86x = 1,808,155.34 × 886,821.43
  4. Step 4: Simplify right side
    1,207,429.86x = 1,603,510,904,280.94
  5. Step 5: Solve for x
    x = 1,603,510,904,280.94/1,207,429.86
  6. Step 6: Final answer
    x = 1,328,036.48

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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.