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Finding the Fourth Proportional to 636,155.36, 877,884.28 and 349,669.28

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Solution

The fourth proportional to 636,155.36, 877,884.28 and 349,669.28 is: 482,538.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,155.36 : 877,884.28 = 349,669.28 : x
  2. Step 2: Convert to fraction form
    636,155.36/877,884.28 = 349,669.28/x
  3. Step 3: Cross multiply
    636,155.36x = 877,884.28 × 349,669.28
  4. Step 4: Simplify right side
    636,155.36x = 306,969,164,110.92
  5. Step 5: Solve for x
    x = 306,969,164,110.92/636,155.36
  6. Step 6: Final answer
    x = 482,538.05

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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.