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Finding the Fourth Proportional to 521,556.80, 784,005.60 and 484,577.60

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Solution

The fourth proportional to 521,556.80, 784,005.60 and 484,577.60 is: 728,418.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,556.80 : 784,005.60 = 484,577.60 : x
  2. Step 2: Convert to fraction form
    521,556.80/784,005.60 = 484,577.60/x
  3. Step 3: Cross multiply
    521,556.80x = 784,005.60 × 484,577.60
  4. Step 4: Simplify right side
    521,556.80x = 379,911,552,034.56
  5. Step 5: Solve for x
    x = 379,911,552,034.56/521,556.80
  6. Step 6: Final answer
    x = 728,418.37

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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.