Home / 665,190.28-917,962.40-359,266.58

Finding the Fourth Proportional to 665,190.28, 917,962.40 and 359,266.58

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Solution

The fourth proportional to 665,190.28, 917,962.40 and 359,266.58 is: 495,787.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,190.28 : 917,962.40 = 359,266.58 : x
  2. Step 2: Convert to fraction form
    665,190.28/917,962.40 = 359,266.58/x
  3. Step 3: Cross multiply
    665,190.28x = 917,962.40 × 359,266.58
  4. Step 4: Simplify right side
    665,190.28x = 329,793,208,324.95
  5. Step 5: Solve for x
    x = 329,793,208,324.95/665,190.28
  6. Step 6: Final answer
    x = 495,787.78

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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.