Home / 500,255.39-690,347.72-270,806.81

Finding the Fourth Proportional to 500,255.39, 690,347.72 and 270,806.81

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Solution

The fourth proportional to 500,255.39, 690,347.72 and 270,806.81 is: 373,710.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,255.39 : 690,347.72 = 270,806.81 : x
  2. Step 2: Convert to fraction form
    500,255.39/690,347.72 = 270,806.81/x
  3. Step 3: Cross multiply
    500,255.39x = 690,347.72 × 270,806.81
  4. Step 4: Simplify right side
    500,255.39x = 186,950,861,069.25
  5. Step 5: Solve for x
    x = 186,950,861,069.25/500,255.39
  6. Step 6: Final answer
    x = 373,710.84

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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.