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Finding the Fourth Proportional to 870,884.80, 1,201,738.08 and 488,824

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Solution

The fourth proportional to 870,884.80, 1,201,738.08 and 488,824 is: 674,530.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,884.80 : 1,201,738.08 = 488,824 : x
  2. Step 2: Convert to fraction form
    870,884.80/1,201,738.08 = 488,824/x
  3. Step 3: Cross multiply
    870,884.80x = 1,201,738.08 × 488,824
  4. Step 4: Simplify right side
    870,884.80x = 587,438,415,217.92
  5. Step 5: Solve for x
    x = 587,438,415,217.92/870,884.80
  6. Step 6: Final answer
    x = 674,530.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.