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Finding the Fourth Proportional to 500,309.04, 690,426.92 and 270,866.48

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Solution

The fourth proportional to 500,309.04, 690,426.92 and 270,866.48 is: 373,795.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,309.04 : 690,426.92 = 270,866.48 : x
  2. Step 2: Convert to fraction form
    500,309.04/690,426.92 = 270,866.48/x
  3. Step 3: Cross multiply
    500,309.04x = 690,426.92 × 270,866.48
  4. Step 4: Simplify right side
    500,309.04x = 187,013,504,711.18
  5. Step 5: Solve for x
    x = 187,013,504,711.18/500,309.04
  6. Step 6: Final answer
    x = 373,795.97

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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.