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Finding the Fourth Proportional to 651,662.20, 977,784.90 and 296,493.40

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Solution

The fourth proportional to 651,662.20, 977,784.90 and 296,493.40 is: 444,872.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,662.20 : 977,784.90 = 296,493.40 : x
  2. Step 2: Convert to fraction form
    651,662.20/977,784.90 = 296,493.40/x
  3. Step 3: Cross multiply
    651,662.20x = 977,784.90 × 296,493.40
  4. Step 4: Simplify right side
    651,662.20x = 289,906,769,469.66
  5. Step 5: Solve for x
    x = 289,906,769,469.66/651,662.20
  6. Step 6: Final answer
    x = 444,872.77

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Double scale
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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.