Home / 763,400.94-1,143,356.80-364,321.96

Finding the Fourth Proportional to 763,400.94, 1,143,356.80 and 364,321.96

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Solution

The fourth proportional to 763,400.94, 1,143,356.80 and 364,321.96 is: 545,650.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,400.94 : 1,143,356.80 = 364,321.96 : x
  2. Step 2: Convert to fraction form
    763,400.94/1,143,356.80 = 364,321.96/x
  3. Step 3: Cross multiply
    763,400.94x = 1,143,356.80 × 364,321.96
  4. Step 4: Simplify right side
    763,400.94x = 416,549,996,845.43
  5. Step 5: Solve for x
    x = 416,549,996,845.43/763,400.94
  6. Step 6: Final answer
    x = 545,650.36

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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.