Home / 1,383,586.90-1,909,267.68-802,765.06

Finding the Fourth Proportional to 1,383,586.90, 1,909,267.68 and 802,765.06

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Solution

The fourth proportional to 1,383,586.90, 1,909,267.68 and 802,765.06 is: 1,107,768.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,586.90 : 1,909,267.68 = 802,765.06 : x
  2. Step 2: Convert to fraction form
    1,383,586.90/1,909,267.68 = 802,765.06/x
  3. Step 3: Cross multiply
    1,383,586.90x = 1,909,267.68 × 802,765.06
  4. Step 4: Simplify right side
    1,383,586.90x = 1,532,693,383,691.26
  5. Step 5: Solve for x
    x = 1,532,693,383,691.26/1,383,586.90
  6. Step 6: Final answer
    x = 1,107,768.07

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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.