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Finding the Fourth Proportional to 608,700.64, 912,556.16 and 253,978.96

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Solution

The fourth proportional to 608,700.64, 912,556.16 and 253,978.96 is: 380,761.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,700.64 : 912,556.16 = 253,978.96 : x
  2. Step 2: Convert to fraction form
    608,700.64/912,556.16 = 253,978.96/x
  3. Step 3: Cross multiply
    608,700.64x = 912,556.16 × 253,978.96
  4. Step 4: Simplify right side
    608,700.64x = 231,770,064,458.39
  5. Step 5: Solve for x
    x = 231,770,064,458.39/608,700.64
  6. Step 6: Final answer
    x = 380,761.99

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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.