Home / 683,426.80-1,025,140.20-328,355.20

Finding the Fourth Proportional to 683,426.80, 1,025,140.20 and 328,355.20

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Solution

The fourth proportional to 683,426.80, 1,025,140.20 and 328,355.20 is: 492,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,426.80 : 1,025,140.20 = 328,355.20 : x
  2. Step 2: Convert to fraction form
    683,426.80/1,025,140.20 = 328,355.20/x
  3. Step 3: Cross multiply
    683,426.80x = 1,025,140.20 × 328,355.20
  4. Step 4: Simplify right side
    683,426.80x = 336,610,115,399.04
  5. Step 5: Solve for x
    x = 336,610,115,399.04/683,426.80
  6. Step 6: Final answer
    x = 492,532.80

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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.