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Finding the Fourth Proportional to 546,953.10, 754,833.45 and 305,239.71

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Solution

The fourth proportional to 546,953.10, 754,833.45 and 305,239.71 is: 421,252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,953.10 : 754,833.45 = 305,239.71 : x
  2. Step 2: Convert to fraction form
    546,953.10/754,833.45 = 305,239.71/x
  3. Step 3: Cross multiply
    546,953.10x = 754,833.45 × 305,239.71
  4. Step 4: Simplify right side
    546,953.10x = 230,405,143,376.30
  5. Step 5: Solve for x
    x = 230,405,143,376.30/546,953.10
  6. Step 6: Final answer
    x = 421,252.10

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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.