Home / 683,401.30-1,025,101.95-328,329.70

Finding the Fourth Proportional to 683,401.30, 1,025,101.95 and 328,329.70

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Solution

The fourth proportional to 683,401.30, 1,025,101.95 and 328,329.70 is: 492,494.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,401.30 : 1,025,101.95 = 328,329.70 : x
  2. Step 2: Convert to fraction form
    683,401.30/1,025,101.95 = 328,329.70/x
  3. Step 3: Cross multiply
    683,401.30x = 1,025,101.95 × 328,329.70
  4. Step 4: Simplify right side
    683,401.30x = 336,571,415,712.92
  5. Step 5: Solve for x
    x = 336,571,415,712.92/683,401.30
  6. Step 6: Final answer
    x = 492,494.55

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Double scale
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Similar ratio
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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.