Home / 1,383,641.30-1,909,472.46-802,820.54

Finding the Fourth Proportional to 1,383,641.30, 1,909,472.46 and 802,820.54

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Solution

The fourth proportional to 1,383,641.30, 1,909,472.46 and 802,820.54 is: 1,107,919.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,641.30 : 1,909,472.46 = 802,820.54 : x
  2. Step 2: Convert to fraction form
    1,383,641.30/1,909,472.46 = 802,820.54/x
  3. Step 3: Cross multiply
    1,383,641.30x = 1,909,472.46 × 802,820.54
  4. Step 4: Simplify right side
    1,383,641.30x = 1,532,963,711,452.33
  5. Step 5: Solve for x
    x = 1,532,963,711,452.33/1,383,641.30
  6. Step 6: Final answer
    x = 1,107,919.89

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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.