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Finding the Fourth Proportional to 655,402.98, 983,486.59 and 276,300.50

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Solution

The fourth proportional to 655,402.98, 983,486.59 and 276,300.50 is: 414,611.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,402.98 : 983,486.59 = 276,300.50 : x
  2. Step 2: Convert to fraction form
    655,402.98/983,486.59 = 276,300.50/x
  3. Step 3: Cross multiply
    655,402.98x = 983,486.59 × 276,300.50
  4. Step 4: Simplify right side
    655,402.98x = 271,737,838,328.26
  5. Step 5: Solve for x
    x = 271,737,838,328.26/655,402.98
  6. Step 6: Final answer
    x = 414,611.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.