Home / 870,821.96-1,201,729.57-488,848.64

Finding the Fourth Proportional to 870,821.96, 1,201,729.57 and 488,848.64

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Solution

The fourth proportional to 870,821.96, 1,201,729.57 and 488,848.64 is: 674,608.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,821.96 : 1,201,729.57 = 488,848.64 : x
  2. Step 2: Convert to fraction form
    870,821.96/1,201,729.57 = 488,848.64/x
  3. Step 3: Cross multiply
    870,821.96x = 1,201,729.57 × 488,848.64
  4. Step 4: Simplify right side
    870,821.96x = 587,463,858,711.52
  5. Step 5: Solve for x
    x = 587,463,858,711.52/870,821.96
  6. Step 6: Final answer
    x = 674,608.46

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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.