Home / 1,079,738.82-1,490,039.57-627,058.98

Finding the Fourth Proportional to 1,079,738.82, 1,490,039.57 and 627,058.98

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Solution

The fourth proportional to 1,079,738.82, 1,490,039.57 and 627,058.98 is: 865,341.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,738.82 : 1,490,039.57 = 627,058.98 : x
  2. Step 2: Convert to fraction form
    1,079,738.82/1,490,039.57 = 627,058.98/x
  3. Step 3: Cross multiply
    1,079,738.82x = 1,490,039.57 × 627,058.98
  4. Step 4: Simplify right side
    1,079,738.82x = 934,342,689,788.54
  5. Step 5: Solve for x
    x = 934,342,689,788.54/1,079,738.82
  6. Step 6: Final answer
    x = 865,341.39

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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.