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Finding the Fourth Proportional to 500,029.51, 690,042.54 and 270,586.77

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Solution

The fourth proportional to 500,029.51, 690,042.54 and 270,586.77 is: 373,410.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,029.51 : 690,042.54 = 270,586.77 : x
  2. Step 2: Convert to fraction form
    500,029.51/690,042.54 = 270,586.77/x
  3. Step 3: Cross multiply
    500,029.51x = 690,042.54 × 270,586.77
  4. Step 4: Simplify right side
    500,029.51x = 186,716,382,061.20
  5. Step 5: Solve for x
    x = 186,716,382,061.20/500,029.51
  6. Step 6: Final answer
    x = 373,410.73

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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.