Home / 345,769.05-476,892.97-307,047.60

Finding the Fourth Proportional to 345,769.05, 476,892.97 and 307,047.60

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Solution

The fourth proportional to 345,769.05, 476,892.97 and 307,047.60 is: 423,487.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,769.05 : 476,892.97 = 307,047.60 : x
  2. Step 2: Convert to fraction form
    345,769.05/476,892.97 = 307,047.60/x
  3. Step 3: Cross multiply
    345,769.05x = 476,892.97 × 307,047.60
  4. Step 4: Simplify right side
    345,769.05x = 146,428,841,895.37
  5. Step 5: Solve for x
    x = 146,428,841,895.37/345,769.05
  6. Step 6: Final answer
    x = 423,487.42

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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.