Home / 1,890,868.78-2,609,415.57-1,031,432.86

Finding the Fourth Proportional to 1,890,868.78, 2,609,415.57 and 1,031,432.86

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Solution

The fourth proportional to 1,890,868.78, 2,609,415.57 and 1,031,432.86 is: 1,423,386.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,868.78 : 2,609,415.57 = 1,031,432.86 : x
  2. Step 2: Convert to fraction form
    1,890,868.78/2,609,415.57 = 1,031,432.86/x
  3. Step 3: Cross multiply
    1,890,868.78x = 2,609,415.57 × 1,031,432.86
  4. Step 4: Simplify right side
    1,890,868.78x = 2,691,436,964,293.63
  5. Step 5: Solve for x
    x = 2,691,436,964,293.63/1,890,868.78
  6. Step 6: Final answer
    x = 1,423,386.43

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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.