Home / 623,844.75-860,990-351,968.43

Finding the Fourth Proportional to 623,844.75, 860,990 and 351,968.43

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Solution

The fourth proportional to 623,844.75, 860,990 and 351,968.43 is: 485,763.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,844.75 : 860,990 = 351,968.43 : x
  2. Step 2: Convert to fraction form
    623,844.75/860,990 = 351,968.43/x
  3. Step 3: Cross multiply
    623,844.75x = 860,990 × 351,968.43
  4. Step 4: Simplify right side
    623,844.75x = 303,041,298,545.70
  5. Step 5: Solve for x
    x = 303,041,298,545.70/623,844.75
  6. Step 6: Final answer
    x = 485,763.96

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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.