Home / 500,280.36-690,394.50-273,946.92

Finding the Fourth Proportional to 500,280.36, 690,394.50 and 273,946.92

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Solution

The fourth proportional to 500,280.36, 690,394.50 and 273,946.92 is: 378,050.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,280.36 : 690,394.50 = 273,946.92 : x
  2. Step 2: Convert to fraction form
    500,280.36/690,394.50 = 273,946.92/x
  3. Step 3: Cross multiply
    500,280.36x = 690,394.50 × 273,946.92
  4. Step 4: Simplify right side
    500,280.36x = 189,131,446,859.94
  5. Step 5: Solve for x
    x = 189,131,446,859.94/500,280.36
  6. Step 6: Final answer
    x = 378,050.91

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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.