Home / 679,934.40-1,019,901.60-325,640.40

Finding the Fourth Proportional to 679,934.40, 1,019,901.60 and 325,640.40

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Solution

The fourth proportional to 679,934.40, 1,019,901.60 and 325,640.40 is: 488,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,934.40 : 1,019,901.60 = 325,640.40 : x
  2. Step 2: Convert to fraction form
    679,934.40/1,019,901.60 = 325,640.40/x
  3. Step 3: Cross multiply
    679,934.40x = 1,019,901.60 × 325,640.40
  4. Step 4: Simplify right side
    679,934.40x = 332,121,164,984.64
  5. Step 5: Solve for x
    x = 332,121,164,984.64/679,934.40
  6. Step 6: Final answer
    x = 488,460.60

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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.