Home / 816,628.50-1,126,893.94-454,039.02

Finding the Fourth Proportional to 816,628.50, 1,126,893.94 and 454,039.02

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Solution

The fourth proportional to 816,628.50, 1,126,893.94 and 454,039.02 is: 626,544.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,628.50 : 1,126,893.94 = 454,039.02 : x
  2. Step 2: Convert to fraction form
    816,628.50/1,126,893.94 = 454,039.02/x
  3. Step 3: Cross multiply
    816,628.50x = 1,126,893.94 × 454,039.02
  4. Step 4: Simplify right side
    816,628.50x = 511,653,819,026.44
  5. Step 5: Solve for x
    x = 511,653,819,026.44/816,628.50
  6. Step 6: Final answer
    x = 626,544.16

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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.