Home / 870,868.83-1,201,732.64-488,821.80

Finding the Fourth Proportional to 870,868.83, 1,201,732.64 and 488,821.80

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Solution

The fourth proportional to 870,868.83, 1,201,732.64 and 488,821.80 is: 674,536.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,868.83 : 1,201,732.64 = 488,821.80 : x
  2. Step 2: Convert to fraction form
    870,868.83/1,201,732.64 = 488,821.80/x
  3. Step 3: Cross multiply
    870,868.83x = 1,201,732.64 × 488,821.80
  4. Step 4: Simplify right side
    870,868.83x = 587,433,109,759.44
  5. Step 5: Solve for x
    x = 587,433,109,759.44/870,868.83
  6. Step 6: Final answer
    x = 674,536.84

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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.