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Finding the Fourth Proportional to 473,539.60, 711,864.60 and 405,110.80

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Solution

The fourth proportional to 473,539.60, 711,864.60 and 405,110.80 is: 608,996.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,539.60 : 711,864.60 = 405,110.80 : x
  2. Step 2: Convert to fraction form
    473,539.60/711,864.60 = 405,110.80/x
  3. Step 3: Cross multiply
    473,539.60x = 711,864.60 × 405,110.80
  4. Step 4: Simplify right side
    473,539.60x = 288,384,037,597.68
  5. Step 5: Solve for x
    x = 288,384,037,597.68/473,539.60
  6. Step 6: Final answer
    x = 608,996.67

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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.