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Finding the Fourth Proportional to 400,647.12, 601,018.11 and 250,899.77

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Solution

The fourth proportional to 400,647.12, 601,018.11 and 250,899.77 is: 376,379.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,647.12 : 601,018.11 = 250,899.77 : x
  2. Step 2: Convert to fraction form
    400,647.12/601,018.11 = 250,899.77/x
  3. Step 3: Cross multiply
    400,647.12x = 601,018.11 × 250,899.77
  4. Step 4: Simplify right side
    400,647.12x = 150,795,302,559.74
  5. Step 5: Solve for x
    x = 150,795,302,559.74/400,647.12
  6. Step 6: Final answer
    x = 376,379.35

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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.