Home / 645,936.60-968,904.90-480,048.60

Finding the Fourth Proportional to 645,936.60, 968,904.90 and 480,048.60

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Solution

The fourth proportional to 645,936.60, 968,904.90 and 480,048.60 is: 720,072.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,936.60 : 968,904.90 = 480,048.60 : x
  2. Step 2: Convert to fraction form
    645,936.60/968,904.90 = 480,048.60/x
  3. Step 3: Cross multiply
    645,936.60x = 968,904.90 × 480,048.60
  4. Step 4: Simplify right side
    645,936.60x = 465,121,440,778.14
  5. Step 5: Solve for x
    x = 465,121,440,778.14/645,936.60
  6. Step 6: Final answer
    x = 720,072.90

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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.