Home / 1,218,236.15-1,827,349.22-307,420.67

Finding the Fourth Proportional to 1,218,236.15, 1,827,349.22 and 307,420.67

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Solution

The fourth proportional to 1,218,236.15, 1,827,349.22 and 307,420.67 is: 461,129.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,236.15 : 1,827,349.22 = 307,420.67 : x
  2. Step 2: Convert to fraction form
    1,218,236.15/1,827,349.22 = 307,420.67/x
  3. Step 3: Cross multiply
    1,218,236.15x = 1,827,349.22 × 307,420.67
  4. Step 4: Simplify right side
    1,218,236.15x = 561,764,914,865.22
  5. Step 5: Solve for x
    x = 561,764,914,865.22/1,218,236.15
  6. Step 6: Final answer
    x = 461,129.74

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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.