Home / 870,930.56-1,201,953.60-488,982.40

Finding the Fourth Proportional to 870,930.56, 1,201,953.60 and 488,982.40

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Solution

The fourth proportional to 870,930.56, 1,201,953.60 and 488,982.40 is: 674,834.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,930.56 : 1,201,953.60 = 488,982.40 : x
  2. Step 2: Convert to fraction form
    870,930.56/1,201,953.60 = 488,982.40/x
  3. Step 3: Cross multiply
    870,930.56x = 1,201,953.60 × 488,982.40
  4. Step 4: Simplify right side
    870,930.56x = 587,734,156,016.64
  5. Step 5: Solve for x
    x = 587,734,156,016.64/870,930.56
  6. Step 6: Final answer
    x = 674,834.69

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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.