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Finding the Fourth Proportional to 379,775.36, 523,672.67 and 243,757.93

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Solution

The fourth proportional to 379,775.36, 523,672.67 and 243,757.93 is: 336,118.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,775.36 : 523,672.67 = 243,757.93 : x
  2. Step 2: Convert to fraction form
    379,775.36/523,672.67 = 243,757.93/x
  3. Step 3: Cross multiply
    379,775.36x = 523,672.67 × 243,757.93
  4. Step 4: Simplify right side
    379,775.36x = 127,649,362,199.62
  5. Step 5: Solve for x
    x = 127,649,362,199.62/379,775.36
  6. Step 6: Final answer
    x = 336,118.07

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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.