Home / 645,848.40-968,772.60-225,025.86

Finding the Fourth Proportional to 645,848.40, 968,772.60 and 225,025.86

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Solution

The fourth proportional to 645,848.40, 968,772.60 and 225,025.86 is: 337,538.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,848.40 : 968,772.60 = 225,025.86 : x
  2. Step 2: Convert to fraction form
    645,848.40/968,772.60 = 225,025.86/x
  3. Step 3: Cross multiply
    645,848.40x = 968,772.60 × 225,025.86
  4. Step 4: Simplify right side
    645,848.40x = 217,998,887,459.44
  5. Step 5: Solve for x
    x = 217,998,887,459.44/645,848.40
  6. Step 6: Final answer
    x = 337,538.79

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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.