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Finding the Fourth Proportional to 636,076.08, 877,801.71 and 349,603.79

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Solution

The fourth proportional to 636,076.08, 877,801.71 and 349,603.79 is: 482,462.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,076.08 : 877,801.71 = 349,603.79 : x
  2. Step 2: Convert to fraction form
    636,076.08/877,801.71 = 349,603.79/x
  3. Step 3: Cross multiply
    636,076.08x = 877,801.71 × 349,603.79
  4. Step 4: Simplify right side
    636,076.08x = 306,882,800,295.47
  5. Step 5: Solve for x
    x = 306,882,800,295.47/636,076.08
  6. Step 6: Final answer
    x = 482,462.41

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1.5x scale

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.