Home / 873,940.78-1,206,216.93-551,433.61

Finding the Fourth Proportional to 873,940.78, 1,206,216.93 and 551,433.61

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Solution

The fourth proportional to 873,940.78, 1,206,216.93 and 551,433.61 is: 761,091.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,940.78 : 1,206,216.93 = 551,433.61 : x
  2. Step 2: Convert to fraction form
    873,940.78/1,206,216.93 = 551,433.61/x
  3. Step 3: Cross multiply
    873,940.78x = 1,206,216.93 × 551,433.61
  4. Step 4: Simplify right side
    873,940.78x = 665,148,556,153.02
  5. Step 5: Solve for x
    x = 665,148,556,153.02/873,940.78
  6. Step 6: Final answer
    x = 761,091.11

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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.