Home / 665,299.97-918,114.30-359,376.34

Finding the Fourth Proportional to 665,299.97, 918,114.30 and 359,376.34

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Solution

The fourth proportional to 665,299.97, 918,114.30 and 359,376.34 is: 495,939.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,299.97 : 918,114.30 = 359,376.34 : x
  2. Step 2: Convert to fraction form
    665,299.97/918,114.30 = 359,376.34/x
  3. Step 3: Cross multiply
    665,299.97x = 918,114.30 × 359,376.34
  4. Step 4: Simplify right side
    665,299.97x = 329,948,556,261.84
  5. Step 5: Solve for x
    x = 329,948,556,261.84/665,299.97
  6. Step 6: Final answer
    x = 495,939.53

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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.