Home / 814,840.29-1,223,460.27-455,714.75

Finding the Fourth Proportional to 814,840.29, 1,223,460.27 and 455,714.75

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Solution

The fourth proportional to 814,840.29, 1,223,460.27 and 455,714.75 is: 684,243.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,840.29 : 1,223,460.27 = 455,714.75 : x
  2. Step 2: Convert to fraction form
    814,840.29/1,223,460.27 = 455,714.75/x
  3. Step 3: Cross multiply
    814,840.29x = 1,223,460.27 × 455,714.75
  4. Step 4: Simplify right side
    814,840.29x = 557,548,884,960.68
  5. Step 5: Solve for x
    x = 557,548,884,960.68/814,840.29
  6. Step 6: Final answer
    x = 684,243.15

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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.