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Finding the Fourth Proportional to 493,553.40, 740,330.10 and 306,929.40

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Solution

The fourth proportional to 493,553.40, 740,330.10 and 306,929.40 is: 460,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,553.40 : 740,330.10 = 306,929.40 : x
  2. Step 2: Convert to fraction form
    493,553.40/740,330.10 = 306,929.40/x
  3. Step 3: Cross multiply
    493,553.40x = 740,330.10 × 306,929.40
  4. Step 4: Simplify right side
    493,553.40x = 227,229,073,394.94
  5. Step 5: Solve for x
    x = 227,229,073,394.94/493,553.40
  6. Step 6: Final answer
    x = 460,394.10

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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.