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Finding the Fourth Proportional to 452,638.81, 624,381.78 and 282,577.69

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Solution

The fourth proportional to 452,638.81, 624,381.78 and 282,577.69 is: 389,795.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,638.81 : 624,381.78 = 282,577.69 : x
  2. Step 2: Convert to fraction form
    452,638.81/624,381.78 = 282,577.69/x
  3. Step 3: Cross multiply
    452,638.81x = 624,381.78 × 282,577.69
  4. Step 4: Simplify right side
    452,638.81x = 176,436,362,910.63
  5. Step 5: Solve for x
    x = 176,436,362,910.63/452,638.81
  6. Step 6: Final answer
    x = 389,795.04

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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.