Home / 690,777.57-946,368.56-664,890.32

Finding the Fourth Proportional to 690,777.57, 946,368.56 and 664,890.32

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Solution

The fourth proportional to 690,777.57, 946,368.56 and 664,890.32 is: 910,902.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,777.57 : 946,368.56 = 664,890.32 : x
  2. Step 2: Convert to fraction form
    690,777.57/946,368.56 = 664,890.32/x
  3. Step 3: Cross multiply
    690,777.57x = 946,368.56 × 664,890.32
  4. Step 4: Simplify right side
    690,777.57x = 629,231,294,696.34
  5. Step 5: Solve for x
    x = 629,231,294,696.34/690,777.57
  6. Step 6: Final answer
    x = 910,902.90

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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.