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Finding the Fourth Proportional to 545,960.20, 818,940.30 and 490,847.80

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Solution

The fourth proportional to 545,960.20, 818,940.30 and 490,847.80 is: 736,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,960.20 : 818,940.30 = 490,847.80 : x
  2. Step 2: Convert to fraction form
    545,960.20/818,940.30 = 490,847.80/x
  3. Step 3: Cross multiply
    545,960.20x = 818,940.30 × 490,847.80
  4. Step 4: Simplify right side
    545,960.20x = 401,975,044,586.34
  5. Step 5: Solve for x
    x = 401,975,044,586.34/545,960.20
  6. Step 6: Final answer
    x = 736,271.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.