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Finding the Fourth Proportional to 636,157.64, 877,882.68 and 345,762.32

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Solution

The fourth proportional to 636,157.64, 877,882.68 and 345,762.32 is: 477,143.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,157.64 : 877,882.68 = 345,762.32 : x
  2. Step 2: Convert to fraction form
    636,157.64/877,882.68 = 345,762.32/x
  3. Step 3: Cross multiply
    636,157.64x = 877,882.68 × 345,762.32
  4. Step 4: Simplify right side
    636,157.64x = 303,538,752,124.62
  5. Step 5: Solve for x
    x = 303,538,752,124.62/636,157.64
  6. Step 6: Final answer
    x = 477,143.92

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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.