Home / 690,724.05-946,295.39-664,836.75

Finding the Fourth Proportional to 690,724.05, 946,295.39 and 664,836.75

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Solution

The fourth proportional to 690,724.05, 946,295.39 and 664,836.75 is: 910,829.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,724.05 : 946,295.39 = 664,836.75 : x
  2. Step 2: Convert to fraction form
    690,724.05/946,295.39 = 664,836.75/x
  3. Step 3: Cross multiply
    690,724.05x = 946,295.39 × 664,836.75
  4. Step 4: Simplify right side
    690,724.05x = 629,131,948,303.40
  5. Step 5: Solve for x
    x = 629,131,948,303.40/690,724.05
  6. Step 6: Final answer
    x = 910,829.66

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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.