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Finding the Fourth Proportional to 615,896.80, 923,384.40 and 335,730.40

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Solution

The fourth proportional to 615,896.80, 923,384.40 and 335,730.40 is: 503,344.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,896.80 : 923,384.40 = 335,730.40 : x
  2. Step 2: Convert to fraction form
    615,896.80/923,384.40 = 335,730.40/x
  3. Step 3: Cross multiply
    615,896.80x = 923,384.40 × 335,730.40
  4. Step 4: Simplify right side
    615,896.80x = 310,008,213,965.76
  5. Step 5: Solve for x
    x = 310,008,213,965.76/615,896.80
  6. Step 6: Final answer
    x = 503,344.41

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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.