Home / 692,816.40-1,040,293.80-377,888.40

Finding the Fourth Proportional to 692,816.40, 1,040,293.80 and 377,888.40

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Solution

The fourth proportional to 692,816.40, 1,040,293.80 and 377,888.40 is: 567,415.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,816.40 : 1,040,293.80 = 377,888.40 : x
  2. Step 2: Convert to fraction form
    692,816.40/1,040,293.80 = 377,888.40/x
  3. Step 3: Cross multiply
    692,816.40x = 1,040,293.80 × 377,888.40
  4. Step 4: Simplify right side
    692,816.40x = 393,114,959,611.92
  5. Step 5: Solve for x
    x = 393,114,959,611.92/692,816.40
  6. Step 6: Final answer
    x = 567,415.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.