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Finding the Fourth Proportional to 513,599.46, 768,900.15 and 299,711.94

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Solution

The fourth proportional to 513,599.46, 768,900.15 and 299,711.94 is: 448,693.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,599.46 : 768,900.15 = 299,711.94 : x
  2. Step 2: Convert to fraction form
    513,599.46/768,900.15 = 299,711.94/x
  3. Step 3: Cross multiply
    513,599.46x = 768,900.15 × 299,711.94
  4. Step 4: Simplify right side
    513,599.46x = 230,448,555,622.79
  5. Step 5: Solve for x
    x = 230,448,555,622.79/513,599.46
  6. Step 6: Final answer
    x = 448,693.14

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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.