Home / 821,619.45-1,232,893.31-442,532.16

Finding the Fourth Proportional to 821,619.45, 1,232,893.31 and 442,532.16

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Solution

The fourth proportional to 821,619.45, 1,232,893.31 and 442,532.16 is: 664,048.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,619.45 : 1,232,893.31 = 442,532.16 : x
  2. Step 2: Convert to fraction form
    821,619.45/1,232,893.31 = 442,532.16/x
  3. Step 3: Cross multiply
    821,619.45x = 1,232,893.31 × 442,532.16
  4. Step 4: Simplify right side
    821,619.45x = 545,594,937,311.19
  5. Step 5: Solve for x
    x = 545,594,937,311.19/821,619.45
  6. Step 6: Final answer
    x = 664,048.22

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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.