Home / 345,986.10-518,979.15-276,002.10

Finding the Fourth Proportional to 345,986.10, 518,979.15 and 276,002.10

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Solution

The fourth proportional to 345,986.10, 518,979.15 and 276,002.10 is: 414,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,986.10 : 518,979.15 = 276,002.10 : x
  2. Step 2: Convert to fraction form
    345,986.10/518,979.15 = 276,002.10/x
  3. Step 3: Cross multiply
    345,986.10x = 518,979.15 × 276,002.10
  4. Step 4: Simplify right side
    345,986.10x = 143,239,335,256.22
  5. Step 5: Solve for x
    x = 143,239,335,256.22/345,986.10
  6. Step 6: Final answer
    x = 414,003.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.