Home / 901,149.03-1,243,589.64-487,685.87

Finding the Fourth Proportional to 901,149.03, 1,243,589.64 and 487,685.87

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Solution

The fourth proportional to 901,149.03, 1,243,589.64 and 487,685.87 is: 673,008.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,149.03 : 1,243,589.64 = 487,685.87 : x
  2. Step 2: Convert to fraction form
    901,149.03/1,243,589.64 = 487,685.87/x
  3. Step 3: Cross multiply
    901,149.03x = 1,243,589.64 × 487,685.87
  4. Step 4: Simplify right side
    901,149.03x = 606,481,089,288.44
  5. Step 5: Solve for x
    x = 606,481,089,288.44/901,149.03
  6. Step 6: Final answer
    x = 673,008.65

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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.