Home / 873,939.78-1,206,215.55-551,432.61

Finding the Fourth Proportional to 873,939.78, 1,206,215.55 and 551,432.61

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Solution

The fourth proportional to 873,939.78, 1,206,215.55 and 551,432.61 is: 761,089.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,939.78 : 1,206,215.55 = 551,432.61 : x
  2. Step 2: Convert to fraction form
    873,939.78/1,206,215.55 = 551,432.61/x
  3. Step 3: Cross multiply
    873,939.78x = 1,206,215.55 × 551,432.61
  4. Step 4: Simplify right side
    873,939.78x = 665,146,588,959.09
  5. Step 5: Solve for x
    x = 665,146,588,959.09/873,939.78
  6. Step 6: Final answer
    x = 761,089.73

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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.