Home / 690,723.55-946,294.70-664,836.25

Finding the Fourth Proportional to 690,723.55, 946,294.70 and 664,836.25

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Solution

The fourth proportional to 690,723.55, 946,294.70 and 664,836.25 is: 910,828.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,723.55 : 946,294.70 = 664,836.25 : x
  2. Step 2: Convert to fraction form
    690,723.55/946,294.70 = 664,836.25/x
  3. Step 3: Cross multiply
    690,723.55x = 946,294.70 × 664,836.25
  4. Step 4: Simplify right side
    690,723.55x = 629,131,019,742.88
  5. Step 5: Solve for x
    x = 629,131,019,742.88/690,723.55
  6. Step 6: Final answer
    x = 910,828.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.