Home / 642,638.14-958,211.84-624,982.25

Finding the Fourth Proportional to 642,638.14, 958,211.84 and 624,982.25

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Solution

The fourth proportional to 642,638.14, 958,211.84 and 624,982.25 is: 931,885.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,638.14 : 958,211.84 = 624,982.25 : x
  2. Step 2: Convert to fraction form
    642,638.14/958,211.84 = 624,982.25/x
  3. Step 3: Cross multiply
    642,638.14x = 958,211.84 × 624,982.25
  4. Step 4: Simplify right side
    642,638.14x = 598,865,391,010.46
  5. Step 5: Solve for x
    x = 598,865,391,010.46/642,638.14
  6. Step 6: Final answer
    x = 931,885.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.