Home / 497,256.36-686,033.78-325,272.50

Finding the Fourth Proportional to 497,256.36, 686,033.78 and 325,272.50

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Solution

The fourth proportional to 497,256.36, 686,033.78 and 325,272.50 is: 448,758.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,256.36 : 686,033.78 = 325,272.50 : x
  2. Step 2: Convert to fraction form
    497,256.36/686,033.78 = 325,272.50/x
  3. Step 3: Cross multiply
    497,256.36x = 686,033.78 × 325,272.50
  4. Step 4: Simplify right side
    497,256.36x = 223,147,917,648.52
  5. Step 5: Solve for x
    x = 223,147,917,648.52/497,256.36
  6. Step 6: Final answer
    x = 448,758.30

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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.