Home / 865,995.20-1,298,992.80-551,844.80

Finding the Fourth Proportional to 865,995.20, 1,298,992.80 and 551,844.80

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Solution

The fourth proportional to 865,995.20, 1,298,992.80 and 551,844.80 is: 827,767.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,995.20 : 1,298,992.80 = 551,844.80 : x
  2. Step 2: Convert to fraction form
    865,995.20/1,298,992.80 = 551,844.80/x
  3. Step 3: Cross multiply
    865,995.20x = 1,298,992.80 × 551,844.80
  4. Step 4: Simplify right side
    865,995.20x = 716,842,421,917.44
  5. Step 5: Solve for x
    x = 716,842,421,917.44/865,995.20
  6. Step 6: Final answer
    x = 827,767.20

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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.