Home / 916,727.70-1,375,109.31-317,708.58

Finding the Fourth Proportional to 916,727.70, 1,375,109.31 and 317,708.58

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Solution

The fourth proportional to 916,727.70, 1,375,109.31 and 317,708.58 is: 476,569.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,727.70 : 1,375,109.31 = 317,708.58 : x
  2. Step 2: Convert to fraction form
    916,727.70/1,375,109.31 = 317,708.58/x
  3. Step 3: Cross multiply
    916,727.70x = 1,375,109.31 × 317,708.58
  4. Step 4: Simplify right side
    916,727.70x = 436,884,026,224.88
  5. Step 5: Solve for x
    x = 436,884,026,224.88/916,727.70
  6. Step 6: Final answer
    x = 476,569.03

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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.