Home / 1,187,045.52-1,638,870.48-824,353.44

Finding the Fourth Proportional to 1,187,045.52, 1,638,870.48 and 824,353.44

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Solution

The fourth proportional to 1,187,045.52, 1,638,870.48 and 824,353.44 is: 1,138,126.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,045.52 : 1,638,870.48 = 824,353.44 : x
  2. Step 2: Convert to fraction form
    1,187,045.52/1,638,870.48 = 824,353.44/x
  3. Step 3: Cross multiply
    1,187,045.52x = 1,638,870.48 × 824,353.44
  4. Step 4: Simplify right side
    1,187,045.52x = 1,351,008,517,902.45
  5. Step 5: Solve for x
    x = 1,351,008,517,902.45/1,187,045.52
  6. Step 6: Final answer
    x = 1,138,126.97

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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.