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Finding the Fourth Proportional to 623,513.73, 860,375.82 and 351,565.41

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Solution

The fourth proportional to 623,513.73, 860,375.82 and 351,565.41 is: 485,119.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,513.73 : 860,375.82 = 351,565.41 : x
  2. Step 2: Convert to fraction form
    623,513.73/860,375.82 = 351,565.41/x
  3. Step 3: Cross multiply
    623,513.73x = 860,375.82 × 351,565.41
  4. Step 4: Simplify right side
    623,513.73x = 302,478,382,457.17
  5. Step 5: Solve for x
    x = 302,478,382,457.17/623,513.73
  6. Step 6: Final answer
    x = 485,119.04

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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.