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Finding the Fourth Proportional to 500,029.30, 690,042.25 and 270,586.56

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Solution

The fourth proportional to 500,029.30, 690,042.25 and 270,586.56 is: 373,410.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,029.30 : 690,042.25 = 270,586.56 : x
  2. Step 2: Convert to fraction form
    500,029.30/690,042.25 = 270,586.56/x
  3. Step 3: Cross multiply
    500,029.30x = 690,042.25 × 270,586.56
  4. Step 4: Simplify right side
    500,029.30x = 186,716,158,682.16
  5. Step 5: Solve for x
    x = 186,716,158,682.16/500,029.30
  6. Step 6: Final answer
    x = 373,410.44

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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.