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Finding the Fourth Proportional to 636,247.10, 877,983.91 and 349,767.11

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Solution

The fourth proportional to 636,247.10, 877,983.91 and 349,767.11 is: 482,658.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,247.10 : 877,983.91 = 349,767.11 : x
  2. Step 2: Convert to fraction form
    636,247.10/877,983.91 = 349,767.11/x
  3. Step 3: Cross multiply
    636,247.10x = 877,983.91 × 349,767.11
  4. Step 4: Simplify right side
    636,247.10x = 307,089,896,147.74
  5. Step 5: Solve for x
    x = 307,089,896,147.74/636,247.10
  6. Step 6: Final answer
    x = 482,658.22

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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.