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Finding the Fourth Proportional to 637,802.40, 956,818.80 and 263,863.20

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Solution

The fourth proportional to 637,802.40, 956,818.80 and 263,863.20 is: 395,842.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,802.40 : 956,818.80 = 263,863.20 : x
  2. Step 2: Convert to fraction form
    637,802.40/956,818.80 = 263,863.20/x
  3. Step 3: Cross multiply
    637,802.40x = 956,818.80 × 263,863.20
  4. Step 4: Simplify right side
    637,802.40x = 252,469,270,388.16
  5. Step 5: Solve for x
    x = 252,469,270,388.16/637,802.40
  6. Step 6: Final answer
    x = 395,842.46

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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.