Home / 665,304.04-918,119.97-359,380.45

Finding the Fourth Proportional to 665,304.04, 918,119.97 and 359,380.45

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Solution

The fourth proportional to 665,304.04, 918,119.97 and 359,380.45 is: 495,945.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,304.04 : 918,119.97 = 359,380.45 : x
  2. Step 2: Convert to fraction form
    665,304.04/918,119.97 = 359,380.45/x
  3. Step 3: Cross multiply
    665,304.04x = 918,119.97 × 359,380.45
  4. Step 4: Simplify right side
    665,304.04x = 329,954,367,972.59
  5. Step 5: Solve for x
    x = 329,954,367,972.59/665,304.04
  6. Step 6: Final answer
    x = 495,945.23

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1.5x scale

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.