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Finding the Fourth Proportional to 568,598.49, 784,632.15 and 310,423.95

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Solution

The fourth proportional to 568,598.49, 784,632.15 and 310,423.95 is: 428,366.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,598.49 : 784,632.15 = 310,423.95 : x
  2. Step 2: Convert to fraction form
    568,598.49/784,632.15 = 310,423.95/x
  3. Step 3: Cross multiply
    568,598.49x = 784,632.15 × 310,423.95
  4. Step 4: Simplify right side
    568,598.49x = 243,568,611,299.99
  5. Step 5: Solve for x
    x = 243,568,611,299.99/568,598.49
  6. Step 6: Final answer
    x = 428,366.62

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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.