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Finding the Fourth Proportional to 558,953.40, 771,369.56 and 304,318.56

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Solution

The fourth proportional to 558,953.40, 771,369.56 and 304,318.56 is: 419,967.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,953.40 : 771,369.56 = 304,318.56 : x
  2. Step 2: Convert to fraction form
    558,953.40/771,369.56 = 304,318.56/x
  3. Step 3: Cross multiply
    558,953.40x = 771,369.56 × 304,318.56
  4. Step 4: Simplify right side
    558,953.40x = 234,742,073,727.03
  5. Step 5: Solve for x
    x = 234,742,073,727.03/558,953.40
  6. Step 6: Final answer
    x = 419,967.16

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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.