Home / 899,251.53-1,240,967.42-485,788.44

Finding the Fourth Proportional to 899,251.53, 1,240,967.42 and 485,788.44

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Solution

The fourth proportional to 899,251.53, 1,240,967.42 and 485,788.44 is: 670,388.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,251.53 : 1,240,967.42 = 485,788.44 : x
  2. Step 2: Convert to fraction form
    899,251.53/1,240,967.42 = 485,788.44/x
  3. Step 3: Cross multiply
    899,251.53x = 1,240,967.42 × 485,788.44
  4. Step 4: Simplify right side
    899,251.53x = 602,847,627,052.63
  5. Step 5: Solve for x
    x = 602,847,627,052.63/899,251.53
  6. Step 6: Final answer
    x = 670,388.21

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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.