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Finding the Fourth Proportional to 695,259.78, 959,458.44 and 377,307.78

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Solution

The fourth proportional to 695,259.78, 959,458.44 and 377,307.78 is: 520,684.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,259.78 : 959,458.44 = 377,307.78 : x
  2. Step 2: Convert to fraction form
    695,259.78/959,458.44 = 377,307.78/x
  3. Step 3: Cross multiply
    695,259.78x = 959,458.44 × 377,307.78
  4. Step 4: Simplify right side
    695,259.78x = 362,011,133,998.66
  5. Step 5: Solve for x
    x = 362,011,133,998.66/695,259.78
  6. Step 6: Final answer
    x = 520,684.71

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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.