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Finding the Fourth Proportional to 521,792.10, 782,503.74 and 248,206.05

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Solution

The fourth proportional to 521,792.10, 782,503.74 and 248,206.05 is: 372,221.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,792.10 : 782,503.74 = 248,206.05 : x
  2. Step 2: Convert to fraction form
    521,792.10/782,503.74 = 248,206.05/x
  3. Step 3: Cross multiply
    521,792.10x = 782,503.74 × 248,206.05
  4. Step 4: Simplify right side
    521,792.10x = 194,222,162,415.63
  5. Step 5: Solve for x
    x = 194,222,162,415.63/521,792.10
  6. Step 6: Final answer
    x = 372,221.35

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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.