Home / 758,974.46-1,138,466.66-303,603.78

Finding the Fourth Proportional to 758,974.46, 1,138,466.66 and 303,603.78

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Solution

The fourth proportional to 758,974.46, 1,138,466.66 and 303,603.78 is: 455,407.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,974.46 : 1,138,466.66 = 303,603.78 : x
  2. Step 2: Convert to fraction form
    758,974.46/1,138,466.66 = 303,603.78/x
  3. Step 3: Cross multiply
    758,974.46x = 1,138,466.66 × 303,603.78
  4. Step 4: Simplify right side
    758,974.46x = 345,642,781,379.98
  5. Step 5: Solve for x
    x = 345,642,781,379.98/758,974.46
  6. Step 6: Final answer
    x = 455,407.66

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1.5x scale

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.