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Finding the Fourth Proportional to 500,382.54, 690,526.88 and 270,939.76

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Solution

The fourth proportional to 500,382.54, 690,526.88 and 270,939.76 is: 373,896.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,382.54 : 690,526.88 = 270,939.76 : x
  2. Step 2: Convert to fraction form
    500,382.54/690,526.88 = 270,939.76/x
  3. Step 3: Cross multiply
    500,382.54x = 690,526.88 × 270,939.76
  4. Step 4: Simplify right side
    500,382.54x = 187,091,184,059.73
  5. Step 5: Solve for x
    x = 187,091,184,059.73/500,382.54
  6. Step 6: Final answer
    x = 373,896.31

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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.