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Finding the Fourth Proportional to 503,783.85, 694,996.81 and 340,387.62

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Solution

The fourth proportional to 503,783.85, 694,996.81 and 340,387.62 is: 469,582.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,783.85 : 694,996.81 = 340,387.62 : x
  2. Step 2: Convert to fraction form
    503,783.85/694,996.81 = 340,387.62/x
  3. Step 3: Cross multiply
    503,783.85x = 694,996.81 × 340,387.62
  4. Step 4: Simplify right side
    503,783.85x = 236,568,306,606.29
  5. Step 5: Solve for x
    x = 236,568,306,606.29/503,783.85
  6. Step 6: Final answer
    x = 469,582.95

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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.