Home / 683,340.40-1,025,302.20-328,171.60

Finding the Fourth Proportional to 683,340.40, 1,025,302.20 and 328,171.60

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Solution

The fourth proportional to 683,340.40, 1,025,302.20 and 328,171.60 is: 492,397.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,340.40 : 1,025,302.20 = 328,171.60 : x
  2. Step 2: Convert to fraction form
    683,340.40/1,025,302.20 = 328,171.60/x
  3. Step 3: Cross multiply
    683,340.40x = 1,025,302.20 × 328,171.60
  4. Step 4: Simplify right side
    683,340.40x = 336,475,063,457.52
  5. Step 5: Solve for x
    x = 336,475,063,457.52/683,340.40
  6. Step 6: Final answer
    x = 492,397.44

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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.