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Finding the Fourth Proportional to 418,029, 576,901.92 and 245,955.84

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Solution

The fourth proportional to 418,029, 576,901.92 and 245,955.84 is: 339,431.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,029 : 576,901.92 = 245,955.84 : x
  2. Step 2: Convert to fraction form
    418,029/576,901.92 = 245,955.84/x
  3. Step 3: Cross multiply
    418,029x = 576,901.92 × 245,955.84
  4. Step 4: Simplify right side
    418,029x = 141,892,396,331.21
  5. Step 5: Solve for x
    x = 141,892,396,331.21/418,029
  6. Step 6: Final answer
    x = 339,431.94

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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.