Home / 500,280.22-690,391.11-296,342.74

Finding the Fourth Proportional to 500,280.22, 690,391.11 and 296,342.74

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Solution

The fourth proportional to 500,280.22, 690,391.11 and 296,342.74 is: 408,955.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,280.22 : 690,391.11 = 296,342.74 : x
  2. Step 2: Convert to fraction form
    500,280.22/690,391.11 = 296,342.74/x
  3. Step 3: Cross multiply
    500,280.22x = 690,391.11 × 296,342.74
  4. Step 4: Simplify right side
    500,280.22x = 204,592,393,209.04
  5. Step 5: Solve for x
    x = 204,592,393,209.04/500,280.22
  6. Step 6: Final answer
    x = 408,955.59

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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.