Home / 999,439.35-1,379,226.54-563,949.15

Finding the Fourth Proportional to 999,439.35, 1,379,226.54 and 563,949.15

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Solution

The fourth proportional to 999,439.35, 1,379,226.54 and 563,949.15 is: 778,249.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,439.35 : 1,379,226.54 = 563,949.15 : x
  2. Step 2: Convert to fraction form
    999,439.35/1,379,226.54 = 563,949.15/x
  3. Step 3: Cross multiply
    999,439.35x = 1,379,226.54 × 563,949.15
  4. Step 4: Simplify right side
    999,439.35x = 777,813,634,890.44
  5. Step 5: Solve for x
    x = 777,813,634,890.44/999,439.35
  6. Step 6: Final answer
    x = 778,249.96

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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.