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Finding the Fourth Proportional to 623,486.84, 860,464.62 and 351,607.16

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Solution

The fourth proportional to 623,486.84, 860,464.62 and 351,607.16 is: 485,247.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,486.84 : 860,464.62 = 351,607.16 : x
  2. Step 2: Convert to fraction form
    623,486.84/860,464.62 = 351,607.16/x
  3. Step 3: Cross multiply
    623,486.84x = 860,464.62 × 351,607.16
  4. Step 4: Simplify right side
    623,486.84x = 302,545,521,318.68
  5. Step 5: Solve for x
    x = 302,545,521,318.68/623,486.84
  6. Step 6: Final answer
    x = 485,247.65

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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.