Home / 683,284.40-1,025,218.20-328,115.60

Finding the Fourth Proportional to 683,284.40, 1,025,218.20 and 328,115.60

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Solution

The fourth proportional to 683,284.40, 1,025,218.20 and 328,115.60 is: 492,313.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,284.40 : 1,025,218.20 = 328,115.60 : x
  2. Step 2: Convert to fraction form
    683,284.40/1,025,218.20 = 328,115.60/x
  3. Step 3: Cross multiply
    683,284.40x = 1,025,218.20 × 328,115.60
  4. Step 4: Simplify right side
    683,284.40x = 336,390,084,823.92
  5. Step 5: Solve for x
    x = 336,390,084,823.92/683,284.40
  6. Step 6: Final answer
    x = 492,313.43

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1.5x scale

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.