Home / 900,825.44-1,243,589.16-518,778.42

Finding the Fourth Proportional to 900,825.44, 1,243,589.16 and 518,778.42

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Solution

The fourth proportional to 900,825.44, 1,243,589.16 and 518,778.42 is: 716,173.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,825.44 : 1,243,589.16 = 518,778.42 : x
  2. Step 2: Convert to fraction form
    900,825.44/1,243,589.16 = 518,778.42/x
  3. Step 3: Cross multiply
    900,825.44x = 1,243,589.16 × 518,778.42
  4. Step 4: Simplify right side
    900,825.44x = 645,147,219,553.93
  5. Step 5: Solve for x
    x = 645,147,219,553.93/900,825.44
  6. Step 6: Final answer
    x = 716,173.40

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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.