Home / 1,123,276.70-1,684,915.05-857,556.20

Finding the Fourth Proportional to 1,123,276.70, 1,684,915.05 and 857,556.20

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Solution

The fourth proportional to 1,123,276.70, 1,684,915.05 and 857,556.20 is: 1,286,334.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,276.70 : 1,684,915.05 = 857,556.20 : x
  2. Step 2: Convert to fraction form
    1,123,276.70/1,684,915.05 = 857,556.20/x
  3. Step 3: Cross multiply
    1,123,276.70x = 1,684,915.05 × 857,556.20
  4. Step 4: Simplify right side
    1,123,276.70x = 1,444,909,347,600.81
  5. Step 5: Solve for x
    x = 1,444,909,347,600.81/1,123,276.70
  6. Step 6: Final answer
    x = 1,286,334.30

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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.