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Finding the Fourth Proportional to 649,509.03, 896,286.30 and 359,103.80

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Solution

The fourth proportional to 649,509.03, 896,286.30 and 359,103.80 is: 495,543.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,509.03 : 896,286.30 = 359,103.80 : x
  2. Step 2: Convert to fraction form
    649,509.03/896,286.30 = 359,103.80/x
  3. Step 3: Cross multiply
    649,509.03x = 896,286.30 × 359,103.80
  4. Step 4: Simplify right side
    649,509.03x = 321,859,816,217.94
  5. Step 5: Solve for x
    x = 321,859,816,217.94/649,509.03
  6. Step 6: Final answer
    x = 495,543.25

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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.