Home / 821,900.59-1,232,985.82-253,281.79

Finding the Fourth Proportional to 821,900.59, 1,232,985.82 and 253,281.79

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Solution

The fourth proportional to 821,900.59, 1,232,985.82 and 253,281.79 is: 379,964.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,900.59 : 1,232,985.82 = 253,281.79 : x
  2. Step 2: Convert to fraction form
    821,900.59/1,232,985.82 = 253,281.79/x
  3. Step 3: Cross multiply
    821,900.59x = 1,232,985.82 × 253,281.79
  4. Step 4: Simplify right side
    821,900.59x = 312,292,848,102.88
  5. Step 5: Solve for x
    x = 312,292,848,102.88/821,900.59
  6. Step 6: Final answer
    x = 379,964.26

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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.