Home / 500,315.33-690,435.38-270,872.62

Finding the Fourth Proportional to 500,315.33, 690,435.38 and 270,872.62

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Solution

The fourth proportional to 500,315.33, 690,435.38 and 270,872.62 is: 373,804.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,315.33 : 690,435.38 = 270,872.62 : x
  2. Step 2: Convert to fraction form
    500,315.33/690,435.38 = 270,872.62/x
  3. Step 3: Cross multiply
    500,315.33x = 690,435.38 × 270,872.62
  4. Step 4: Simplify right side
    500,315.33x = 187,020,039,272.39
  5. Step 5: Solve for x
    x = 187,020,039,272.39/500,315.33
  6. Step 6: Final answer
    x = 373,804.33

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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.