Home / 777,980.46-1,166,690.14-328,736.15

Finding the Fourth Proportional to 777,980.46, 1,166,690.14 and 328,736.15

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Solution

The fourth proportional to 777,980.46, 1,166,690.14 and 328,736.15 is: 492,985.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,980.46 : 1,166,690.14 = 328,736.15 : x
  2. Step 2: Convert to fraction form
    777,980.46/1,166,690.14 = 328,736.15/x
  3. Step 3: Cross multiply
    777,980.46x = 1,166,690.14 × 328,736.15
  4. Step 4: Simplify right side
    777,980.46x = 383,533,224,866.56
  5. Step 5: Solve for x
    x = 383,533,224,866.56/777,980.46
  6. Step 6: Final answer
    x = 492,985.68

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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.