Home / 1,373,995.80-1,896,144.59-762,128.63

Finding the Fourth Proportional to 1,373,995.80, 1,896,144.59 and 762,128.63

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Solution

The fourth proportional to 1,373,995.80, 1,896,144.59 and 762,128.63 is: 1,051,754.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373,995.80 : 1,896,144.59 = 762,128.63 : x
  2. Step 2: Convert to fraction form
    1,373,995.80/1,896,144.59 = 762,128.63/x
  3. Step 3: Cross multiply
    1,373,995.80x = 1,896,144.59 × 762,128.63
  4. Step 4: Simplify right side
    1,373,995.80x = 1,445,106,078,658.61
  5. Step 5: Solve for x
    x = 1,445,106,078,658.61/1,373,995.80
  6. Step 6: Final answer
    x = 1,051,754.36

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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.