Home / 1,252,745.60-1,728,780.16-679,771.20

Finding the Fourth Proportional to 1,252,745.60, 1,728,780.16 and 679,771.20

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Solution

The fourth proportional to 1,252,745.60, 1,728,780.16 and 679,771.20 is: 938,079.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,745.60 : 1,728,780.16 = 679,771.20 : x
  2. Step 2: Convert to fraction form
    1,252,745.60/1,728,780.16 = 679,771.20/x
  3. Step 3: Cross multiply
    1,252,745.60x = 1,728,780.16 × 679,771.20
  4. Step 4: Simplify right side
    1,252,745.60x = 1,175,174,963,899.39
  5. Step 5: Solve for x
    x = 1,175,174,963,899.39/1,252,745.60
  6. Step 6: Final answer
    x = 938,079.50

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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.