Home / 683,386.40-1,025,371.20-328,217.60

Finding the Fourth Proportional to 683,386.40, 1,025,371.20 and 328,217.60

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Solution

The fourth proportional to 683,386.40, 1,025,371.20 and 328,217.60 is: 492,466.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,386.40 : 1,025,371.20 = 328,217.60 : x
  2. Step 2: Convert to fraction form
    683,386.40/1,025,371.20 = 328,217.60/x
  3. Step 3: Cross multiply
    683,386.40x = 1,025,371.20 × 328,217.60
  4. Step 4: Simplify right side
    683,386.40x = 336,544,874,373.12
  5. Step 5: Solve for x
    x = 336,544,874,373.12/683,386.40
  6. Step 6: Final answer
    x = 492,466.45

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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.