Home / 683,400.30-1,025,100.45-328,328.70

Finding the Fourth Proportional to 683,400.30, 1,025,100.45 and 328,328.70

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Solution

The fourth proportional to 683,400.30, 1,025,100.45 and 328,328.70 is: 492,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,400.30 : 1,025,100.45 = 328,328.70 : x
  2. Step 2: Convert to fraction form
    683,400.30/1,025,100.45 = 328,328.70/x
  3. Step 3: Cross multiply
    683,400.30x = 1,025,100.45 × 328,328.70
  4. Step 4: Simplify right side
    683,400.30x = 336,569,898,117.92
  5. Step 5: Solve for x
    x = 336,569,898,117.92/683,400.30
  6. Step 6: Final answer
    x = 492,493.05

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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.