Home / 1,383,337.76-1,909,348.40-942,541.56

Finding the Fourth Proportional to 1,383,337.76, 1,909,348.40 and 942,541.56

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Solution

The fourth proportional to 1,383,337.76, 1,909,348.40 and 942,541.56 is: 1,300,940.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,337.76 : 1,909,348.40 = 942,541.56 : x
  2. Step 2: Convert to fraction form
    1,383,337.76/1,909,348.40 = 942,541.56/x
  3. Step 3: Cross multiply
    1,383,337.76x = 1,909,348.40 × 942,541.56
  4. Step 4: Simplify right side
    1,383,337.76x = 1,799,640,219,519.50
  5. Step 5: Solve for x
    x = 1,799,640,219,519.50/1,383,337.76
  6. Step 6: Final answer
    x = 1,300,940.57

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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.