Home / 777,635.30-1,166,277.90-278,999.30

Finding the Fourth Proportional to 777,635.30, 1,166,277.90 and 278,999.30

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Solution

The fourth proportional to 777,635.30, 1,166,277.90 and 278,999.30 is: 418,436.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,635.30 : 1,166,277.90 = 278,999.30 : x
  2. Step 2: Convert to fraction form
    777,635.30/1,166,277.90 = 278,999.30/x
  3. Step 3: Cross multiply
    777,635.30x = 1,166,277.90 × 278,999.30
  4. Step 4: Simplify right side
    777,635.30x = 325,390,717,705.47
  5. Step 5: Solve for x
    x = 325,390,717,705.47/777,635.30
  6. Step 6: Final answer
    x = 418,436.15

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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.