Home / 840,837.50-1,260,506.29-308,234.20

Finding the Fourth Proportional to 840,837.50, 1,260,506.29 and 308,234.20

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Solution

The fourth proportional to 840,837.50, 1,260,506.29 and 308,234.20 is: 462,076.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,837.50 : 1,260,506.29 = 308,234.20 : x
  2. Step 2: Convert to fraction form
    840,837.50/1,260,506.29 = 308,234.20/x
  3. Step 3: Cross multiply
    840,837.50x = 1,260,506.29 × 308,234.20
  4. Step 4: Simplify right side
    840,837.50x = 388,531,147,893.12
  5. Step 5: Solve for x
    x = 388,531,147,893.12/840,837.50
  6. Step 6: Final answer
    x = 462,076.38

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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.