Home / 1,375,011.90-1,897,865.22-939,605.52

Finding the Fourth Proportional to 1,375,011.90, 1,897,865.22 and 939,605.52

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Solution

The fourth proportional to 1,375,011.90, 1,897,865.22 and 939,605.52 is: 1,296,893.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,011.90 : 1,897,865.22 = 939,605.52 : x
  2. Step 2: Convert to fraction form
    1,375,011.90/1,897,865.22 = 939,605.52/x
  3. Step 3: Cross multiply
    1,375,011.90x = 1,897,865.22 × 939,605.52
  4. Step 4: Simplify right side
    1,375,011.90x = 1,783,244,636,928.01
  5. Step 5: Solve for x
    x = 1,783,244,636,928.01/1,375,011.90
  6. Step 6: Final answer
    x = 1,296,893.97

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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.