Home / 1,252,838.74-1,728,918.59-679,878.91

Finding the Fourth Proportional to 1,252,838.74, 1,728,918.59 and 679,878.91

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Solution

The fourth proportional to 1,252,838.74, 1,728,918.59 and 679,878.91 is: 938,233.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,838.74 : 1,728,918.59 = 679,878.91 : x
  2. Step 2: Convert to fraction form
    1,252,838.74/1,728,918.59 = 679,878.91/x
  3. Step 3: Cross multiply
    1,252,838.74x = 1,728,918.59 × 679,878.91
  4. Step 4: Simplify right side
    1,252,838.74x = 1,175,455,283,048.54
  5. Step 5: Solve for x
    x = 1,175,455,283,048.54/1,252,838.74
  6. Step 6: Final answer
    x = 938,233.51

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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.