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Finding the Fourth Proportional to 522,051.60, 783,077.04 and 128,067.60

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Solution

The fourth proportional to 522,051.60, 783,077.04 and 128,067.60 is: 192,101.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,051.60 : 783,077.04 = 128,067.60 : x
  2. Step 2: Convert to fraction form
    522,051.60/783,077.04 = 128,067.60/x
  3. Step 3: Cross multiply
    522,051.60x = 783,077.04 × 128,067.60
  4. Step 4: Simplify right side
    522,051.60x = 100,286,797,127.90
  5. Step 5: Solve for x
    x = 100,286,797,127.90/522,051.60
  6. Step 6: Final answer
    x = 192,101.31

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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.