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Finding the Fourth Proportional to 893,901.78, 1,340,893.97 and 294,915.29

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Solution

The fourth proportional to 893,901.78, 1,340,893.97 and 294,915.29 is: 442,386.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,901.78 : 1,340,893.97 = 294,915.29 : x
  2. Step 2: Convert to fraction form
    893,901.78/1,340,893.97 = 294,915.29/x
  3. Step 3: Cross multiply
    893,901.78x = 1,340,893.97 × 294,915.29
  4. Step 4: Simplify right side
    893,901.78x = 395,450,125,842.76
  5. Step 5: Solve for x
    x = 395,450,125,842.76/893,901.78
  6. Step 6: Final answer
    x = 442,386.55

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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.