Home / 669,605.40-1,003,553.96-313,835.60

Finding the Fourth Proportional to 669,605.40, 1,003,553.96 and 313,835.60

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Solution

The fourth proportional to 669,605.40, 1,003,553.96 and 313,835.60 is: 470,353.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,605.40 : 1,003,553.96 = 313,835.60 : x
  2. Step 2: Convert to fraction form
    669,605.40/1,003,553.96 = 313,835.60/x
  3. Step 3: Cross multiply
    669,605.40x = 1,003,553.96 × 313,835.60
  4. Step 4: Simplify right side
    669,605.40x = 314,950,959,168.98
  5. Step 5: Solve for x
    x = 314,950,959,168.98/669,605.40
  6. Step 6: Final answer
    x = 470,353.08

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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.