Home / 683,480.20-1,025,220.30-459,531.40

Finding the Fourth Proportional to 683,480.20, 1,025,220.30 and 459,531.40

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Solution

The fourth proportional to 683,480.20, 1,025,220.30 and 459,531.40 is: 689,297.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,480.20 : 1,025,220.30 = 459,531.40 : x
  2. Step 2: Convert to fraction form
    683,480.20/1,025,220.30 = 459,531.40/x
  3. Step 3: Cross multiply
    683,480.20x = 1,025,220.30 × 459,531.40
  4. Step 4: Simplify right side
    683,480.20x = 471,120,919,767.42
  5. Step 5: Solve for x
    x = 471,120,919,767.42/683,480.20
  6. Step 6: Final answer
    x = 689,297.10

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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.