Home / 809,857.92-1,117,554.56-487,672.32

Finding the Fourth Proportional to 809,857.92, 1,117,554.56 and 487,672.32

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Solution

The fourth proportional to 809,857.92, 1,117,554.56 and 487,672.32 is: 672,958.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,857.92 : 1,117,554.56 = 487,672.32 : x
  2. Step 2: Convert to fraction form
    809,857.92/1,117,554.56 = 487,672.32/x
  3. Step 3: Cross multiply
    809,857.92x = 1,117,554.56 × 487,672.32
  4. Step 4: Simplify right side
    809,857.92x = 545,000,425,001.78
  5. Step 5: Solve for x
    x = 545,000,425,001.78/809,857.92
  6. Step 6: Final answer
    x = 672,958.07

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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.