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Finding the Fourth Proportional to 637,898.40, 956,847.60 and 438,832.80

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Solution

The fourth proportional to 637,898.40, 956,847.60 and 438,832.80 is: 658,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,898.40 : 956,847.60 = 438,832.80 : x
  2. Step 2: Convert to fraction form
    637,898.40/956,847.60 = 438,832.80/x
  3. Step 3: Cross multiply
    637,898.40x = 956,847.60 × 438,832.80
  4. Step 4: Simplify right side
    637,898.40x = 419,896,111,481.28
  5. Step 5: Solve for x
    x = 419,896,111,481.28/637,898.40
  6. Step 6: Final answer
    x = 658,249.20

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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.