Home / 840,997.78-1,260,746.43-308,394.34

Finding the Fourth Proportional to 840,997.78, 1,260,746.43 and 308,394.34

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Solution

The fourth proportional to 840,997.78, 1,260,746.43 and 308,394.34 is: 462,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,997.78 : 1,260,746.43 = 308,394.34 : x
  2. Step 2: Convert to fraction form
    840,997.78/1,260,746.43 = 308,394.34/x
  3. Step 3: Cross multiply
    840,997.78x = 1,260,746.43 × 308,394.34
  4. Step 4: Simplify right side
    840,997.78x = 388,807,063,187.21
  5. Step 5: Solve for x
    x = 388,807,063,187.21/840,997.78
  6. Step 6: Final answer
    x = 462,316.40

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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.