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Finding the Fourth Proportional to 711,604.50, 982,612.56 and 508,279.11

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Solution

The fourth proportional to 711,604.50, 982,612.56 and 508,279.11 is: 701,852.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,604.50 : 982,612.56 = 508,279.11 : x
  2. Step 2: Convert to fraction form
    711,604.50/982,612.56 = 508,279.11/x
  3. Step 3: Cross multiply
    711,604.50x = 982,612.56 × 508,279.11
  4. Step 4: Simplify right side
    711,604.50x = 499,441,437,471.62
  5. Step 5: Solve for x
    x = 499,441,437,471.62/711,604.50
  6. Step 6: Final answer
    x = 701,852.56

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Double scale
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Similar ratio
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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.