Home / 665,299.94-918,114.26-359,376.31

Finding the Fourth Proportional to 665,299.94, 918,114.26 and 359,376.31

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Solution

The fourth proportional to 665,299.94, 918,114.26 and 359,376.31 is: 495,939.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,299.94 : 918,114.26 = 359,376.31 : x
  2. Step 2: Convert to fraction form
    665,299.94/918,114.26 = 359,376.31/x
  3. Step 3: Cross multiply
    665,299.94x = 918,114.26 × 359,376.31
  4. Step 4: Simplify right side
    665,299.94x = 329,948,511,723.45
  5. Step 5: Solve for x
    x = 329,948,511,723.45/665,299.94
  6. Step 6: Final answer
    x = 495,939.49

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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.