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Finding the Fourth Proportional to 621,802.48, 930,772.98 and 336,785.12

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Solution

The fourth proportional to 621,802.48, 930,772.98 and 336,785.12 is: 504,131.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,802.48 : 930,772.98 = 336,785.12 : x
  2. Step 2: Convert to fraction form
    621,802.48/930,772.98 = 336,785.12/x
  3. Step 3: Cross multiply
    621,802.48x = 930,772.98 × 336,785.12
  4. Step 4: Simplify right side
    621,802.48x = 313,470,489,762.06
  5. Step 5: Solve for x
    x = 313,470,489,762.06/621,802.48
  6. Step 6: Final answer
    x = 504,131.94

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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.