Home / 579,529.44-800,213.04-388,706.40

Finding the Fourth Proportional to 579,529.44, 800,213.04 and 388,706.40

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Solution

The fourth proportional to 579,529.44, 800,213.04 and 388,706.40 is: 536,724.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,529.44 : 800,213.04 = 388,706.40 : x
  2. Step 2: Convert to fraction form
    579,529.44/800,213.04 = 388,706.40/x
  3. Step 3: Cross multiply
    579,529.44x = 800,213.04 × 388,706.40
  4. Step 4: Simplify right side
    579,529.44x = 311,047,930,011.46
  5. Step 5: Solve for x
    x = 311,047,930,011.46/579,529.44
  6. Step 6: Final answer
    x = 536,724.99

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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.