Home / 1,212,309.81-1,818,398.76-370,861.56

Finding the Fourth Proportional to 1,212,309.81, 1,818,398.76 and 370,861.56

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Solution

The fourth proportional to 1,212,309.81, 1,818,398.76 and 370,861.56 is: 556,272.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,309.81 : 1,818,398.76 = 370,861.56 : x
  2. Step 2: Convert to fraction form
    1,212,309.81/1,818,398.76 = 370,861.56/x
  3. Step 3: Cross multiply
    1,212,309.81x = 1,818,398.76 × 370,861.56
  4. Step 4: Simplify right side
    1,212,309.81x = 674,374,200,835.67
  5. Step 5: Solve for x
    x = 674,374,200,835.67/1,212,309.81
  6. Step 6: Final answer
    x = 556,272.16

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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.