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Finding the Fourth Proportional to 623,724.84, 860,736.11 and 351,794.98

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Solution

The fourth proportional to 623,724.84, 860,736.11 and 351,794.98 is: 485,474.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,724.84 : 860,736.11 = 351,794.98 : x
  2. Step 2: Convert to fraction form
    623,724.84/860,736.11 = 351,794.98/x
  3. Step 3: Cross multiply
    623,724.84x = 860,736.11 × 351,794.98
  4. Step 4: Simplify right side
    623,724.84x = 302,802,641,919.67
  5. Step 5: Solve for x
    x = 302,802,641,919.67/623,724.84
  6. Step 6: Final answer
    x = 485,474.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.