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Finding the Fourth Proportional to 445,610.40, 668,415.60 and 424,874.40

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Solution

The fourth proportional to 445,610.40, 668,415.60 and 424,874.40 is: 637,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,610.40 : 668,415.60 = 424,874.40 : x
  2. Step 2: Convert to fraction form
    445,610.40/668,415.60 = 424,874.40/x
  3. Step 3: Cross multiply
    445,610.40x = 668,415.60 × 424,874.40
  4. Step 4: Simplify right side
    445,610.40x = 283,992,677,000.64
  5. Step 5: Solve for x
    x = 283,992,677,000.64/445,610.40
  6. Step 6: Final answer
    x = 637,311.60

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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.