Home / 684,778.40-1,026,326.29-384,628.04

Finding the Fourth Proportional to 684,778.40, 1,026,326.29 and 384,628.04

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Solution

The fourth proportional to 684,778.40, 1,026,326.29 and 384,628.04 is: 576,469.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,778.40 : 1,026,326.29 = 384,628.04 : x
  2. Step 2: Convert to fraction form
    684,778.40/1,026,326.29 = 384,628.04/x
  3. Step 3: Cross multiply
    684,778.40x = 1,026,326.29 × 384,628.04
  4. Step 4: Simplify right side
    684,778.40x = 394,753,869,323.17
  5. Step 5: Solve for x
    x = 394,753,869,323.17/684,778.40
  6. Step 6: Final answer
    x = 576,469.51

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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.