Home / 500,296.80-690,402.69-273,942.30

Finding the Fourth Proportional to 500,296.80, 690,402.69 and 273,942.30

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Solution

The fourth proportional to 500,296.80, 690,402.69 and 273,942.30 is: 378,036.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,296.80 : 690,402.69 = 273,942.30 : x
  2. Step 2: Convert to fraction form
    500,296.80/690,402.69 = 273,942.30/x
  3. Step 3: Cross multiply
    500,296.80x = 690,402.69 × 273,942.30
  4. Step 4: Simplify right side
    500,296.80x = 189,130,500,824.79
  5. Step 5: Solve for x
    x = 189,130,500,824.79/500,296.80
  6. Step 6: Final answer
    x = 378,036.60

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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.