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Finding the Fourth Proportional to 500,043.51, 690,060.03 and 270,600.80

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Solution

The fourth proportional to 500,043.51, 690,060.03 and 270,600.80 is: 373,429.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,043.51 : 690,060.03 = 270,600.80 : x
  2. Step 2: Convert to fraction form
    500,043.51/690,060.03 = 270,600.80/x
  3. Step 3: Cross multiply
    500,043.51x = 690,060.03 × 270,600.80
  4. Step 4: Simplify right side
    500,043.51x = 186,730,792,715.72
  5. Step 5: Solve for x
    x = 186,730,792,715.72/500,043.51
  6. Step 6: Final answer
    x = 373,429.09

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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.