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Finding the Fourth Proportional to 440,477.40, 660,716.10 and 307,617.15

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Solution

The fourth proportional to 440,477.40, 660,716.10 and 307,617.15 is: 461,425.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,477.40 : 660,716.10 = 307,617.15 : x
  2. Step 2: Convert to fraction form
    440,477.40/660,716.10 = 307,617.15/x
  3. Step 3: Cross multiply
    440,477.40x = 660,716.10 × 307,617.15
  4. Step 4: Simplify right side
    440,477.40x = 203,247,603,641.12
  5. Step 5: Solve for x
    x = 203,247,603,641.12/440,477.40
  6. Step 6: Final answer
    x = 461,425.73

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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.