Home / 487,734.64-673,179.08-296,809.56

Finding the Fourth Proportional to 487,734.64, 673,179.08 and 296,809.56

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Solution

The fourth proportional to 487,734.64, 673,179.08 and 296,809.56 is: 409,661.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,734.64 : 673,179.08 = 296,809.56 : x
  2. Step 2: Convert to fraction form
    487,734.64/673,179.08 = 296,809.56/x
  3. Step 3: Cross multiply
    487,734.64x = 673,179.08 × 296,809.56
  4. Step 4: Simplify right side
    487,734.64x = 199,805,986,536.01
  5. Step 5: Solve for x
    x = 199,805,986,536.01/487,734.64
  6. Step 6: Final answer
    x = 409,661.26

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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.