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Finding the Fourth Proportional to 508,794.80, 763,208.78 and 255,937.48

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Solution

The fourth proportional to 508,794.80, 763,208.78 and 255,937.48 is: 383,914.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,794.80 : 763,208.78 = 255,937.48 : x
  2. Step 2: Convert to fraction form
    508,794.80/763,208.78 = 255,937.48/x
  3. Step 3: Cross multiply
    508,794.80x = 763,208.78 × 255,937.48
  4. Step 4: Simplify right side
    508,794.80x = 195,333,731,867.07
  5. Step 5: Solve for x
    x = 195,333,731,867.07/508,794.80
  6. Step 6: Final answer
    x = 383,914.56

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1.5x scale

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.