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Finding the Fourth Proportional to 503,801.05, 695,249.90 and 274,359.34

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Solution

The fourth proportional to 503,801.05, 695,249.90 and 274,359.34 is: 378,618.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,801.05 : 695,249.90 = 274,359.34 : x
  2. Step 2: Convert to fraction form
    503,801.05/695,249.90 = 274,359.34/x
  3. Step 3: Cross multiply
    503,801.05x = 695,249.90 × 274,359.34
  4. Step 4: Simplify right side
    503,801.05x = 190,748,303,699.07
  5. Step 5: Solve for x
    x = 190,748,303,699.07/503,801.05
  6. Step 6: Final answer
    x = 378,618.31

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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.