Home / 500,713.07-690,984.20-271,271.94

Finding the Fourth Proportional to 500,713.07, 690,984.20 and 271,271.94

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Solution

The fourth proportional to 500,713.07, 690,984.20 and 271,271.94 is: 374,355.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,713.07 : 690,984.20 = 271,271.94 : x
  2. Step 2: Convert to fraction form
    500,713.07/690,984.20 = 271,271.94/x
  3. Step 3: Cross multiply
    500,713.07x = 690,984.20 × 271,271.94
  4. Step 4: Simplify right side
    500,713.07x = 187,444,619,632.07
  5. Step 5: Solve for x
    x = 187,444,619,632.07/500,713.07
  6. Step 6: Final answer
    x = 374,355.36

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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.