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Finding the Fourth Proportional to 500,340.92, 690,470.82 and 270,898.34

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Solution

The fourth proportional to 500,340.92, 690,470.82 and 270,898.34 is: 373,839.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,340.92 : 690,470.82 = 270,898.34 : x
  2. Step 2: Convert to fraction form
    500,340.92/690,470.82 = 270,898.34/x
  3. Step 3: Cross multiply
    500,340.92x = 690,470.82 × 270,898.34
  4. Step 4: Simplify right side
    500,340.92x = 187,047,395,504.09
  5. Step 5: Solve for x
    x = 187,047,395,504.09/500,340.92
  6. Step 6: Final answer
    x = 373,839.90

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1.5x scale

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.