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Finding the Fourth Proportional to 508,441.41, 701,977.84 and 315,054.34

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Solution

The fourth proportional to 508,441.41, 701,977.84 and 315,054.34 is: 434,978.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,441.41 : 701,977.84 = 315,054.34 : x
  2. Step 2: Convert to fraction form
    508,441.41/701,977.84 = 315,054.34/x
  3. Step 3: Cross multiply
    508,441.41x = 701,977.84 × 315,054.34
  4. Step 4: Simplify right side
    508,441.41x = 221,161,163,500.55
  5. Step 5: Solve for x
    x = 221,161,163,500.55/508,441.41
  6. Step 6: Final answer
    x = 434,978.66

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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.