Home / 645,949.60-968,924.40-480,061.60

Finding the Fourth Proportional to 645,949.60, 968,924.40 and 480,061.60

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Solution

The fourth proportional to 645,949.60, 968,924.40 and 480,061.60 is: 720,092.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,949.60 : 968,924.40 = 480,061.60 : x
  2. Step 2: Convert to fraction form
    645,949.60/968,924.40 = 480,061.60/x
  3. Step 3: Cross multiply
    645,949.60x = 968,924.40 × 480,061.60
  4. Step 4: Simplify right side
    645,949.60x = 465,143,397,743.04
  5. Step 5: Solve for x
    x = 465,143,397,743.04/645,949.60
  6. Step 6: Final answer
    x = 720,092.40

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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.