Home / 1,237,979.36-1,697,285.56-1,215,584.48

Finding the Fourth Proportional to 1,237,979.36, 1,697,285.56 and 1,215,584.48

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Solution

The fourth proportional to 1,237,979.36, 1,697,285.56 and 1,215,584.48 is: 1,666,581.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,979.36 : 1,697,285.56 = 1,215,584.48 : x
  2. Step 2: Convert to fraction form
    1,237,979.36/1,697,285.56 = 1,215,584.48/x
  3. Step 3: Cross multiply
    1,237,979.36x = 1,697,285.56 × 1,215,584.48
  4. Step 4: Simplify right side
    1,237,979.36x = 2,063,193,984,864.11
  5. Step 5: Solve for x
    x = 2,063,193,984,864.11/1,237,979.36
  6. Step 6: Final answer
    x = 1,666,581.89

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.