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Finding the Fourth Proportional to 500,324.40, 690,446.52 and 273,967.92

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Solution

The fourth proportional to 500,324.40, 690,446.52 and 273,967.92 is: 378,075.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,324.40 : 690,446.52 = 273,967.92 : x
  2. Step 2: Convert to fraction form
    500,324.40/690,446.52 = 273,967.92/x
  3. Step 3: Cross multiply
    500,324.40x = 690,446.52 × 273,967.92
  4. Step 4: Simplify right side
    500,324.40x = 189,160,196,955.64
  5. Step 5: Solve for x
    x = 189,160,196,955.64/500,324.40
  6. Step 6: Final answer
    x = 378,075.10

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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.