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Finding the Fourth Proportional to 636,038.36, 877,753.98 and 349,568.60

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Solution

The fourth proportional to 636,038.36, 877,753.98 and 349,568.60 is: 482,416.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,038.36 : 877,753.98 = 349,568.60 : x
  2. Step 2: Convert to fraction form
    636,038.36/877,753.98 = 349,568.60/x
  3. Step 3: Cross multiply
    636,038.36x = 877,753.98 × 349,568.60
  4. Step 4: Simplify right side
    636,038.36x = 306,835,229,933.03
  5. Step 5: Solve for x
    x = 306,835,229,933.03/636,038.36
  6. Step 6: Final answer
    x = 482,416.23

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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.