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Finding the Fourth Proportional to 700,706.79, 966,975.33 and 378,416.88

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Solution

The fourth proportional to 700,706.79, 966,975.33 and 378,416.88 is: 522,215.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,706.79 : 966,975.33 = 378,416.88 : x
  2. Step 2: Convert to fraction form
    700,706.79/966,975.33 = 378,416.88/x
  3. Step 3: Cross multiply
    700,706.79x = 966,975.33 × 378,416.88
  4. Step 4: Simplify right side
    700,706.79x = 365,919,787,415.57
  5. Step 5: Solve for x
    x = 365,919,787,415.57/700,706.79
  6. Step 6: Final answer
    x = 522,215.27

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1.5x scale

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.