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Finding the Fourth Proportional to 472,893.20, 709,339.80 and 444,899.60

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Solution

The fourth proportional to 472,893.20, 709,339.80 and 444,899.60 is: 667,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,893.20 : 709,339.80 = 444,899.60 : x
  2. Step 2: Convert to fraction form
    472,893.20/709,339.80 = 444,899.60/x
  3. Step 3: Cross multiply
    472,893.20x = 709,339.80 × 444,899.60
  4. Step 4: Simplify right side
    472,893.20x = 315,584,993,284.08
  5. Step 5: Solve for x
    x = 315,584,993,284.08/472,893.20
  6. Step 6: Final answer
    x = 667,349.40

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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.