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Finding the Fourth Proportional to 453,803.70, 680,705.55 and 433,136.55

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Solution

The fourth proportional to 453,803.70, 680,705.55 and 433,136.55 is: 649,704.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,803.70 : 680,705.55 = 433,136.55 : x
  2. Step 2: Convert to fraction form
    453,803.70/680,705.55 = 433,136.55/x
  3. Step 3: Cross multiply
    453,803.70x = 680,705.55 × 433,136.55
  4. Step 4: Simplify right side
    453,803.70x = 294,838,453,492.85
  5. Step 5: Solve for x
    x = 294,838,453,492.85/453,803.70
  6. Step 6: Final answer
    x = 649,704.83

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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.