Home / 500,322.40-690,443.76-273,965.92

Finding the Fourth Proportional to 500,322.40, 690,443.76 and 273,965.92

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Solution

The fourth proportional to 500,322.40, 690,443.76 and 273,965.92 is: 378,072.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,322.40 : 690,443.76 = 273,965.92 : x
  2. Step 2: Convert to fraction form
    500,322.40/690,443.76 = 273,965.92/x
  3. Step 3: Cross multiply
    500,322.40x = 690,443.76 × 273,965.92
  4. Step 4: Simplify right side
    500,322.40x = 189,158,059,916.66
  5. Step 5: Solve for x
    x = 189,158,059,916.66/500,322.40
  6. Step 6: Final answer
    x = 378,072.34

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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.