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Finding the Fourth Proportional to 379,599.72, 523,847.58 and 207,518.40

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Solution

The fourth proportional to 379,599.72, 523,847.58 and 207,518.40 is: 286,375.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,599.72 : 523,847.58 = 207,518.40 : x
  2. Step 2: Convert to fraction form
    379,599.72/523,847.58 = 207,518.40/x
  3. Step 3: Cross multiply
    379,599.72x = 523,847.58 × 207,518.40
  4. Step 4: Simplify right side
    379,599.72x = 108,708,011,645.47
  5. Step 5: Solve for x
    x = 108,708,011,645.47/379,599.72
  6. Step 6: Final answer
    x = 286,375.37

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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.