Home / 814,838.79-1,223,458.01-455,713.25

Finding the Fourth Proportional to 814,838.79, 1,223,458.01 and 455,713.25

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Solution

The fourth proportional to 814,838.79, 1,223,458.01 and 455,713.25 is: 684,240.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,838.79 : 1,223,458.01 = 455,713.25 : x
  2. Step 2: Convert to fraction form
    814,838.79/1,223,458.01 = 455,713.25/x
  3. Step 3: Cross multiply
    814,838.79x = 1,223,458.01 × 455,713.25
  4. Step 4: Simplify right side
    814,838.79x = 557,546,030,753.10
  5. Step 5: Solve for x
    x = 557,546,030,753.10/814,838.79
  6. Step 6: Final answer
    x = 684,240.90

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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.