Home / 830,281-1,245,422.70-231,243.88

Finding the Fourth Proportional to 830,281, 1,245,422.70 and 231,243.88

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Solution

The fourth proportional to 830,281, 1,245,422.70 and 231,243.88 is: 346,866.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,281 : 1,245,422.70 = 231,243.88 : x
  2. Step 2: Convert to fraction form
    830,281/1,245,422.70 = 231,243.88/x
  3. Step 3: Cross multiply
    830,281x = 1,245,422.70 × 231,243.88
  4. Step 4: Simplify right side
    830,281x = 287,996,377,388.08
  5. Step 5: Solve for x
    x = 287,996,377,388.08/830,281
  6. Step 6: Final answer
    x = 346,866.15

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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.