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Finding the Fourth Proportional to 439,007.58, 605,707.56 and 275,681.70

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Solution

The fourth proportional to 439,007.58, 605,707.56 and 275,681.70 is: 380,363.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,007.58 : 605,707.56 = 275,681.70 : x
  2. Step 2: Convert to fraction form
    439,007.58/605,707.56 = 275,681.70/x
  3. Step 3: Cross multiply
    439,007.58x = 605,707.56 × 275,681.70
  4. Step 4: Simplify right side
    439,007.58x = 166,982,489,843.65
  5. Step 5: Solve for x
    x = 166,982,489,843.65/439,007.58
  6. Step 6: Final answer
    x = 380,363.57

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1.5x scale

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.