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Finding the Fourth Proportional to 636,073.09, 877,782.77 and 349,622.53

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Solution

The fourth proportional to 636,073.09, 877,782.77 and 349,622.53 is: 482,480.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,073.09 : 877,782.77 = 349,622.53 : x
  2. Step 2: Convert to fraction form
    636,073.09/877,782.77 = 349,622.53/x
  3. Step 3: Cross multiply
    636,073.09x = 877,782.77 × 349,622.53
  4. Step 4: Simplify right side
    636,073.09x = 306,892,632,837.81
  5. Step 5: Solve for x
    x = 306,892,632,837.81/636,073.09
  6. Step 6: Final answer
    x = 482,480.14

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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.