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Finding the Fourth Proportional to 499,804.27, 689,510.78 and 292,967.79

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Solution

The fourth proportional to 499,804.27, 689,510.78 and 292,967.79 is: 404,167.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,804.27 : 689,510.78 = 292,967.79 : x
  2. Step 2: Convert to fraction form
    499,804.27/689,510.78 = 292,967.79/x
  3. Step 3: Cross multiply
    499,804.27x = 689,510.78 × 292,967.79
  4. Step 4: Simplify right side
    499,804.27x = 202,004,446,445.90
  5. Step 5: Solve for x
    x = 202,004,446,445.90/499,804.27
  6. Step 6: Final answer
    x = 404,167.11

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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.