Home / 1,252,838.15-1,728,917.76-679,878.32

Finding the Fourth Proportional to 1,252,838.15, 1,728,917.76 and 679,878.32

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Solution

The fourth proportional to 1,252,838.15, 1,728,917.76 and 679,878.32 is: 938,232.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,838.15 : 1,728,917.76 = 679,878.32 : x
  2. Step 2: Convert to fraction form
    1,252,838.15/1,728,917.76 = 679,878.32/x
  3. Step 3: Cross multiply
    1,252,838.15x = 1,728,917.76 × 679,878.32
  4. Step 4: Simplify right side
    1,252,838.15x = 1,175,453,690,042.98
  5. Step 5: Solve for x
    x = 1,175,453,690,042.98/1,252,838.15
  6. Step 6: Final answer
    x = 938,232.68

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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.