Home / 979,715.73-1,351,933.05-549,912.81

Finding the Fourth Proportional to 979,715.73, 1,351,933.05 and 549,912.81

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Solution

The fourth proportional to 979,715.73, 1,351,933.05 and 549,912.81 is: 758,837.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,715.73 : 1,351,933.05 = 549,912.81 : x
  2. Step 2: Convert to fraction form
    979,715.73/1,351,933.05 = 549,912.81/x
  3. Step 3: Cross multiply
    979,715.73x = 1,351,933.05 × 549,912.81
  4. Step 4: Simplify right side
    979,715.73x = 743,445,302,457.37
  5. Step 5: Solve for x
    x = 743,445,302,457.37/979,715.73
  6. Step 6: Final answer
    x = 758,837.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.