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Finding the Fourth Proportional to 623,662.44, 860,649.99 and 351,732.69

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Solution

The fourth proportional to 623,662.44, 860,649.99 and 351,732.69 is: 485,388.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,662.44 : 860,649.99 = 351,732.69 : x
  2. Step 2: Convert to fraction form
    623,662.44/860,649.99 = 351,732.69/x
  3. Step 3: Cross multiply
    623,662.44x = 860,649.99 × 351,732.69
  4. Step 4: Simplify right side
    623,662.44x = 302,718,736,131.17
  5. Step 5: Solve for x
    x = 302,718,736,131.17/623,662.44
  6. Step 6: Final answer
    x = 485,388.76

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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.