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Finding the Fourth Proportional to 522,053.60, 783,080.04 and 128,069.60

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Solution

The fourth proportional to 522,053.60, 783,080.04 and 128,069.60 is: 192,104.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,053.60 : 783,080.04 = 128,069.60 : x
  2. Step 2: Convert to fraction form
    522,053.60/783,080.04 = 128,069.60/x
  3. Step 3: Cross multiply
    522,053.60x = 783,080.04 × 128,069.60
  4. Step 4: Simplify right side
    522,053.60x = 100,288,747,490.78
  5. Step 5: Solve for x
    x = 100,288,747,490.78/522,053.60
  6. Step 6: Final answer
    x = 192,104.31

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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.