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Finding the Fourth Proportional to 637,478.73, 879,723.86 and 365,556.87

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Solution

The fourth proportional to 637,478.73, 879,723.86 and 365,556.87 is: 504,470.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,478.73 : 879,723.86 = 365,556.87 : x
  2. Step 2: Convert to fraction form
    637,478.73/879,723.86 = 365,556.87/x
  3. Step 3: Cross multiply
    637,478.73x = 879,723.86 × 365,556.87
  4. Step 4: Simplify right side
    637,478.73x = 321,589,098,898.13
  5. Step 5: Solve for x
    x = 321,589,098,898.13/637,478.73
  6. Step 6: Final answer
    x = 504,470.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.