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Finding the Fourth Proportional to 636,101.76, 877,829.44 and 349,648.32

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Solution

The fourth proportional to 636,101.76, 877,829.44 and 349,648.32 is: 482,519.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,101.76 : 877,829.44 = 349,648.32 : x
  2. Step 2: Convert to fraction form
    636,101.76/877,829.44 = 349,648.32/x
  3. Step 3: Cross multiply
    636,101.76x = 877,829.44 × 349,648.32
  4. Step 4: Simplify right side
    636,101.76x = 306,931,588,942.54
  5. Step 5: Solve for x
    x = 306,931,588,942.54/636,101.76
  6. Step 6: Final answer
    x = 482,519.63

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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.