Home / 727,920.99-1,004,244.57-486,361.35

Finding the Fourth Proportional to 727,920.99, 1,004,244.57 and 486,361.35

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Solution

The fourth proportional to 727,920.99, 1,004,244.57 and 486,361.35 is: 670,987.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,920.99 : 1,004,244.57 = 486,361.35 : x
  2. Step 2: Convert to fraction form
    727,920.99/1,004,244.57 = 486,361.35/x
  3. Step 3: Cross multiply
    727,920.99x = 1,004,244.57 × 486,361.35
  4. Step 4: Simplify right side
    727,920.99x = 488,425,744,795.37
  5. Step 5: Solve for x
    x = 488,425,744,795.37/727,920.99
  6. Step 6: Final answer
    x = 670,987.31

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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.