Home / 500,310.83-690,429.17-270,868.12

Finding the Fourth Proportional to 500,310.83, 690,429.17 and 270,868.12

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Solution

The fourth proportional to 500,310.83, 690,429.17 and 270,868.12 is: 373,798.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,310.83 : 690,429.17 = 270,868.12 : x
  2. Step 2: Convert to fraction form
    500,310.83/690,429.17 = 270,868.12/x
  3. Step 3: Cross multiply
    500,310.83x = 690,429.17 × 270,868.12
  4. Step 4: Simplify right side
    500,310.83x = 187,015,250,222.16
  5. Step 5: Solve for x
    x = 187,015,250,222.16/500,310.83
  6. Step 6: Final answer
    x = 373,798.12

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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.