Home / 500,339.70-690,469.25-270,897.17

Finding the Fourth Proportional to 500,339.70, 690,469.25 and 270,897.17

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Solution

The fourth proportional to 500,339.70, 690,469.25 and 270,897.17 is: 373,838.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,339.70 : 690,469.25 = 270,897.17 : x
  2. Step 2: Convert to fraction form
    500,339.70/690,469.25 = 270,897.17/x
  3. Step 3: Cross multiply
    500,339.70x = 690,469.25 × 270,897.17
  4. Step 4: Simplify right side
    500,339.70x = 187,046,160,990.19
  5. Step 5: Solve for x
    x = 187,046,160,990.19/500,339.70
  6. Step 6: Final answer
    x = 373,838.34

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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.