Home / 755,322.71-1,042,110.56-428,581.67

Finding the Fourth Proportional to 755,322.71, 1,042,110.56 and 428,581.67

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Solution

The fourth proportional to 755,322.71, 1,042,110.56 and 428,581.67 is: 591,309.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,322.71 : 1,042,110.56 = 428,581.67 : x
  2. Step 2: Convert to fraction form
    755,322.71/1,042,110.56 = 428,581.67/x
  3. Step 3: Cross multiply
    755,322.71x = 1,042,110.56 × 428,581.67
  4. Step 4: Simplify right side
    755,322.71x = 446,629,479,990.34
  5. Step 5: Solve for x
    x = 446,629,479,990.34/755,322.71
  6. Step 6: Final answer
    x = 591,309.49

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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.