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Finding the Fourth Proportional to 892,971, 1,339,437.06 and 219,055.50

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Solution

The fourth proportional to 892,971, 1,339,437.06 and 219,055.50 is: 328,578.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,971 : 1,339,437.06 = 219,055.50 : x
  2. Step 2: Convert to fraction form
    892,971/1,339,437.06 = 219,055.50/x
  3. Step 3: Cross multiply
    892,971x = 1,339,437.06 × 219,055.50
  4. Step 4: Simplify right side
    892,971x = 293,411,054,896.83
  5. Step 5: Solve for x
    x = 293,411,054,896.83/892,971
  6. Step 6: Final answer
    x = 328,578.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.