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Finding the Fourth Proportional to 500,060.99, 690,078.89 and 270,613.31

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Solution

The fourth proportional to 500,060.99, 690,078.89 and 270,613.31 is: 373,443.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,060.99 : 690,078.89 = 270,613.31 : x
  2. Step 2: Convert to fraction form
    500,060.99/690,078.89 = 270,613.31/x
  3. Step 3: Cross multiply
    500,060.99x = 690,078.89 × 270,613.31
  4. Step 4: Simplify right side
    500,060.99x = 186,744,529,810.17
  5. Step 5: Solve for x
    x = 186,744,529,810.17/500,060.99
  6. Step 6: Final answer
    x = 373,443.51

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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.