Home / 853,358.81-1,280,037.80-254,304.68

Finding the Fourth Proportional to 853,358.81, 1,280,037.80 and 254,304.68

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Solution

The fourth proportional to 853,358.81, 1,280,037.80 and 254,304.68 is: 381,456.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,358.81 : 1,280,037.80 = 254,304.68 : x
  2. Step 2: Convert to fraction form
    853,358.81/1,280,037.80 = 254,304.68/x
  3. Step 3: Cross multiply
    853,358.81x = 1,280,037.80 × 254,304.68
  4. Step 4: Simplify right side
    853,358.81x = 325,519,597,352.48
  5. Step 5: Solve for x
    x = 325,519,597,352.48/853,358.81
  6. Step 6: Final answer
    x = 381,456.89

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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.