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Finding the Fourth Proportional to 623,485.84, 860,463.24 and 351,606.16

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Solution

The fourth proportional to 623,485.84, 860,463.24 and 351,606.16 is: 485,246.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,485.84 : 860,463.24 = 351,606.16 : x
  2. Step 2: Convert to fraction form
    623,485.84/860,463.24 = 351,606.16/x
  3. Step 3: Cross multiply
    623,485.84x = 860,463.24 × 351,606.16
  4. Step 4: Simplify right side
    623,485.84x = 302,544,175,637.56
  5. Step 5: Solve for x
    x = 302,544,175,637.56/623,485.84
  6. Step 6: Final answer
    x = 485,246.27

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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.