Home / 768,555.80-1,153,536.82-389,738.01

Finding the Fourth Proportional to 768,555.80, 1,153,536.82 and 389,738.01

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Solution

The fourth proportional to 768,555.80, 1,153,536.82 and 389,738.01 is: 584,963.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,555.80 : 1,153,536.82 = 389,738.01 : x
  2. Step 2: Convert to fraction form
    768,555.80/1,153,536.82 = 389,738.01/x
  3. Step 3: Cross multiply
    768,555.80x = 1,153,536.82 × 389,738.01
  4. Step 4: Simplify right side
    768,555.80x = 449,577,144,286.13
  5. Step 5: Solve for x
    x = 449,577,144,286.13/768,555.80
  6. Step 6: Final answer
    x = 584,963.57

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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.