Home / 1,187,092.89-1,638,271.32-670,894.49

Finding the Fourth Proportional to 1,187,092.89, 1,638,271.32 and 670,894.49

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Solution

The fourth proportional to 1,187,092.89, 1,638,271.32 and 670,894.49 is: 925,881.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,092.89 : 1,638,271.32 = 670,894.49 : x
  2. Step 2: Convert to fraction form
    1,187,092.89/1,638,271.32 = 670,894.49/x
  3. Step 3: Cross multiply
    1,187,092.89x = 1,638,271.32 × 670,894.49
  4. Step 4: Simplify right side
    1,187,092.89x = 1,099,107,195,547.54
  5. Step 5: Solve for x
    x = 1,099,107,195,547.54/1,187,092.89
  6. Step 6: Final answer
    x = 925,881.37

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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.