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Finding the Fourth Proportional to 500,292.53, 690,398.72 and 270,843.74

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Solution

The fourth proportional to 500,292.53, 690,398.72 and 270,843.74 is: 373,761.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,292.53 : 690,398.72 = 270,843.74 : x
  2. Step 2: Convert to fraction form
    500,292.53/690,398.72 = 270,843.74/x
  3. Step 3: Cross multiply
    500,292.53x = 690,398.72 × 270,843.74
  4. Step 4: Simplify right side
    500,292.53x = 186,990,166,609.80
  5. Step 5: Solve for x
    x = 186,990,166,609.80/500,292.53
  6. Step 6: Final answer
    x = 373,761.66

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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.