Home / 1,296,308.80-1,788,996.54-723,358.54

Finding the Fourth Proportional to 1,296,308.80, 1,788,996.54 and 723,358.54

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Solution

The fourth proportional to 1,296,308.80, 1,788,996.54 and 723,358.54 is: 998,285.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,308.80 : 1,788,996.54 = 723,358.54 : x
  2. Step 2: Convert to fraction form
    1,296,308.80/1,788,996.54 = 723,358.54/x
  3. Step 3: Cross multiply
    1,296,308.80x = 1,788,996.54 × 723,358.54
  4. Step 4: Simplify right side
    1,296,308.80x = 1,294,085,925,239.45
  5. Step 5: Solve for x
    x = 1,294,085,925,239.45/1,296,308.80
  6. Step 6: Final answer
    x = 998,285.23

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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.