Home / 756,346.21-1,043,809.41-462,121.90

Finding the Fourth Proportional to 756,346.21, 1,043,809.41 and 462,121.90

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Solution

The fourth proportional to 756,346.21, 1,043,809.41 and 462,121.90 is: 637,759.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,346.21 : 1,043,809.41 = 462,121.90 : x
  2. Step 2: Convert to fraction form
    756,346.21/1,043,809.41 = 462,121.90/x
  3. Step 3: Cross multiply
    756,346.21x = 1,043,809.41 × 462,121.90
  4. Step 4: Simplify right side
    756,346.21x = 482,367,187,787.08
  5. Step 5: Solve for x
    x = 482,367,187,787.08/756,346.21
  6. Step 6: Final answer
    x = 637,759.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.